Researcher Database

Hisao Suzuki
Faculty of Science Physics Nonlinear Physics
Professor

Researcher Profile and Settings

Affiliation

  • Faculty of Science Physics Nonlinear Physics

Job Title

  • Professor

J-Global ID

Research Interests

  • 超弦理論   弦理論   相転移   ゲージ理論   ブラックホール   超対称性   非摂動効果   宇宙項   非可換幾何学   重力   超対称性理論   素粒子論   場の理論   超対称性ゲージ理論   量子ホール効果   量子重力   コンパクト化   CPの破れ   対称性の破れ   超対称ゲージ理論   チャーン・サイモン項   格子重力   時間反転不変性の破れ   共形対称性の自発的破れ   共形対称性   チャーン・サイモン作用   ニュートリノ   負の圧縮率   超弦理論のブレイン   Super Yang-Nills   

Research Areas

  • Humanities & social sciences / Science education
  • Natural sciences / Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics

Academic & Professional Experience

  • 2019/04 - Today Hokkaido University Institute for the Advancement of Higher Education
  • 2009/03 - Today Hokkaido University Professor
  • 2013/04 - 2017/03 Hokkaido University Institute for the Advancement of Higher Education
  • 1995/10 - 2009/03 Hokkaido University Associate Professor
  • 1988/10 - 1995/09 Osaka University Assistant Professor
  • 1990/10 - 1991/09 Harvard University Post-doctoral Fellow
  • 1987/04 - 1988/09 高エネルギー物理学研究所, 東京大学 日本学術振興会特別研究員

Education

  • 1983/04 - 1988/01  Nagoya University  Graduate Course  Department of Physics
  • 1979/04 - 1983/03  Nagoya University  Faculty of Science  Department of Physics
  • 1976/04 - 1979/03  静岡県立磐田南高等学校
  • 1973/04 - 1976/03  袋井立周南中学校
  • 1967/04 - 1973/03  袋井市立山名小学校

Association Memberships

  • American Association of Physics Teachers   IDE大学協会   LIBERAL AND GENERAL EDUCAITION SOCIETY OF JAPAN   THE PHYSICS EDUCATION SOSIETY OF JAPAN   THE PHYSICAL SOCIETY OF JAPAN   

Research Activities

Published Papers

  • 鈴木久男、吉永契一郎 、齋藤準
    物理教育 68 (1) 46 - 49 2020/03 [Refereed][Not invited]
  • 海外の研究大学における物理教育の現状と課題
    吉永契一郎, 鈴木久男, 斉藤準
    大学の物理教育 25 (1) 43 - 46 2019/03 [Refereed][Not invited]
  • Tracking the pre-inflation era from density perturbation spectra
    Tadashi Sasaki, Hisao Suzuki
    Phys. Rev. D 99 (063502) 1 - 7 2019/02 [Refereed][Not invited]
  • Exact solutions of primordial gravitational waves
    Tadashi Sasaki, Hisao Suzuki
    Prog. Theor. Exp. Phys. 113 (E03) 1 - 22 2018/11 [Refereed][Not invited]
  • 大学から見た学習指導要領
    鈴木久男
    物理教育 66 (3) 212 - 216 2018/09 [Refereed][Invited]
  • AAC&U Meeting 2017の報告
    鈴木久男
    大学教育学会誌 40 (1) 59 - 62 2018/05 [Refereed][Not invited]
  • 現代のリベラルアーツとしての理数工系科目(STEM)の開発と教育実践のために
    鈴木久男, 山田礼子, 林哲介, 高橋哲也, 細川敏幸
    大学教育学会誌 (38) 87 - 89 2016 [Not refereed][Not invited]
  • 大規模授業でのアクティブラーニングとICTの活用
    鈴木久男
    JUCE Journal (2) 15 - 20 2014 [Refereed][Not invited]
  • Hiroyuki Fuji, Shinsaku Nakayama, Masahide Shimizu, Hisao Suzuki
    JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL 44 (46) 1751-8113 2011/11 [Not refereed][Not invited]
     
    We develop some computational methods for the integrals over the 3-chains on the compact Calabi-Yau 3-folds that play a prominent role in the analysis of the topological B-model in the context of the open mirror symmetry. We discuss such 3-chain integrals in two approaches. In the first approach, we provide an algorithm to obtain the inhomogeneous Picard-Fuchs equations. In the second approach, we discuss the analytic continuation of the period integral to compute the 3-chain integral directly. The latter direct integration method is applicable for both on-shell and off-shell formalisms.
  • Masahide Shimizu, Hisao Suzuki
    JOURNAL OF HIGH ENERGY PHYSICS (3) 1029-8479 2011/03 [Not refereed][Not invited]
     
    We investigate the open mirror symmetry of certain non-complete intersection Calabi-Yau 3-folds, called pfaffian Calabi-Yau. We predict the number of disk invariants of some examples by using the direct integration method proposed recently and the open mirror symmetry. We treat several pfaffian Calabi-Yau 3-folds and branes with two discrete vacua. Some models have two special points in its moduli space, around both of which we can consider different A-model mirror partners. We compute disc invariants for both cases. This study is the first application of the open mirror symmetry to the compact non-complete intersections in toric variety.
  • Sano Masakazu, Suzuki Hisao
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 65 (1) 1342-8349 2010/03 [Not refereed][Not invited]
  • Masakazu Sano, Hisao Suzuki
    PHYSICAL REVIEW D 81 (2) 1550-7998 2010/01 [Not refereed][Not invited]
     
    We consider brane gas models based on type II string theories and analyze the mass, the Ramond-Ramond charge, and the charge on moduli fluctuations of branes wrapping over cycles of a compactified space in the four-dimensional Einstein frame. A six-dimensional torus and Calabi-Yau threefolds are considered for the Kaluza-Klein reduction. A large volume of the compactified space and a weak string coupling gives rise to point particles of the wrapped branes which have a light mass and a small charge of the Ramond-Ramond flux and of the moduli fluctuations, while the particles become very heavy in the string frame. We find that the masses and the charges satisfy the seesaw like dual relations which become time independent in the four-dimensional Einstein frame.
  • 大学生に必要なサイエンス教育とは何か?
    鈴木久男
    名古屋高等教育研究 (10) 59 - 76 2010 [Refereed][Not invited]
  • Sano M, Suzuki H
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 64 (1) 1342-8349 2009/03/03 [Not refereed][Not invited]
  • 鈴木 久男
    数理科学 サイエンス社 47 (1) 14 - 20 0386-2240 2009/01 [Not refereed][Not invited]
  • 大学における統合科学コースのすすめ
    鈴木久男
    大学教育学会誌 31 (1) 94 - 99 2009 [Refereed][Not invited]
  • 鈴木 久男, 武貞 正樹, 引原 俊哉
    Journal of higher education and lifelong learning 北海道大学高等教育機能開発総合センター 0 (16) 1 - 17 1341-9374 2008/12 [Not refereed][Not invited]
     
    Use of the Classroom Response System (CRS) device called "Clicker" is wide spread among universities in the United States and is now considered an essential tool for teaching. The clicker is introduced for the teaching of a physics class in Hokkaido University, which was its first use in Japan. We will explain the function of the clicker and consider the reason why it is widely used in teaching in the US. We also report the effect on the teaching in the physics class in Hokkaido University.
  • Masakazu Sano, Hisao Suzuki
    PHYSICAL REVIEW D 78 (6) 1550-7998 2008/09 [Not refereed][Not invited]
     
    We consider a compactification with a six-dimensional torus in the type II brane gas models. We show that the dilaton and the scale of each cycle of the internal space are fixed in the presence of NS5-branes and Kaluza-Klein monopoles as well as D-branes with the gauge fields. We can construct various models that lead to fixed moduli by using T-duality transformations.
  • Sano M, Suzuki H
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 63 (2) 1342-8349 2008/08/25 [Not refereed][Not invited]
  • Sano Masakazu, Suzuki Hisao
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 63 (1) 1342-8349 2008/02/29 [Not refereed][Not invited]
  • 細川 敏幸, 鈴木 久男, 小野寺 彰
    Journal of higher education and lifelong learning 北海道大学高等教育機能開発総合センター 0 (15) 191 - 196 1341-9374 2007/12 [Not refereed][Not invited]
     
    We introduced a streaming server system to serve students with recorded lectures in introductory physics. Three cameras were set in a lecture room. A video recorder received one of the three signals through a switcher. One of our staff selected the signal and recorded the lecture simultaneously into a digital video tape. The recorded lecture was converted to digital data with a format of QuickTime. The data was stored in a hard drive of Mac OSX server. Access to the lecture data is available only on our university campus. This reports hows the details of each steps of technique.
  • Masakazu Sano, Hisao Suzuki
    PHYSICAL REVIEW D 76 (6) 1550-7998 2007/09 [Not refereed][Not invited]
     
    We consider the cosmological models for the higher dimensional space-time which includes the curvatures of our space as well as the curvatures of the internal space. We find that the condition for the integrability of the cosmological equations is that the total space-time dimensions are D=10 or D=11 which is exactly the conditions for superstrings or M theory. We obtain analytic solutions with generic initial conditions in the four-dimensional Einstein frame and study the accelerating universe when both our space and the internal space have negative curvatures.
  • Sano Masakazu, Suzuki Hisao
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 62 (2) 1342-8349 2007/08 [Not refereed][Not invited]
  • 鈴木 久男
    大学の物理教育 社団法人日本物理学会 13 (1) 4 - 8 1340-993X 2007/03/15 [Not refereed][Not invited]
  • Hiroyuki Fuji, Shinsaku Nakayama, Hisao Suzuki
    Journal of High Energy Physics 2007 (1) 1029-8479 2007/01/01 [Not refereed][Not invited]
     
    Recently, Schnabl constructed the analytic solution of the open string tachyon. Subsequently, the absence of the physical states at the vacuum was proved. The development relies heavily on the use of the gauge condition different from the ordinary one. It was shown that the choice of gauge simplifies the analysis drastically. In this paper we perform the calculation of the amplitudes in Schnabl gauge and find that the off-shell amplitudes is still complicated. To find simple off-shell amplitudes, we choose different gauges for the states and propagators. In particular, we propose a modified Schnabl gauge for the propagator and show that this gauge choice simplifies the calculation of the off-shell amplitudes. We also show that this modified use of the propagator reproduces the on-shell four point amplitudes correctly. We apply this method to open superstring field theory. © SISSA 2007.
  • Suzuki Hisao, Hosokawa Toshiyuki, Yamada Kunimasa
    Journal of higher education and lifelong learning 北海道大学 14 (0) 89 - 97 1341-9374 2006/07 [Not refereed][Not invited]
  • Suzuki Hisao, Yamada Kunimasa, Maeda Nobuki
    Journal of higher education and lifelong learning 北海道大学 14 (0) 83 - 88 1341-9374 2006/07 [Not refereed][Not invited]
  • 鈴木 久男
    数理科学 サイエンス社 44 (3) 56 - 62 0386-2240 2006/03 [Not refereed][Not invited]
  • Suzuki Hisao, Hosokawa Toshiyuki, Onodera Akira
    Journal of higher education and lifelong learning 北海道大学 13 (0) 21 - 28 1341-9374 2005/09 [Not refereed][Not invited]
  • Suzuki Hisao, Hosokawa Toshiyuki, Onodera Akira
    Journal of higher education and lifelong learning 北海道大学 13 (0) 15 - 20 1341-9374 2005/09 [Not refereed][Not invited]
  • Hosokawa Toshiyuki, Onodera Akira, Suzuki Hisao
    物理教育学会年会物理教育研究大会予稿集 日本物理教育学会 0 (22) 88 - 89 2005/08/06 [Not refereed][Not invited]
     
    北海道大学では,2006年度に入学してくる新カリキュラム卒業生に対応した初習理科教育を2004年度から試験的に導入している。そのうち「基礎物理学」では,e-Learningシステムの利用,大人数講義,演示実験,演習の導入,TAの活用など,これまでにない教育手法を採用し,効果的な授業を展開している。この教育手法を紹介するとともに,今後検討すべき課題も提示する。
  • Hisao Suzuki
    JHEP 0303 (2003) 036 2002/12/11 [Not refereed][Not invited]
     
    We discuss how to obtain the superpotential of the baryons and mesons for
    SU(N) gauge theories with N flavour matter fields from matrix integral. We
    apply the mean-field approximation for the matrix integral. Assuming the planar
    limit of the self-consistency equation, we show that the result almost agrees
    with the field theoretical result.
  • Hisao Suzuki, Kunimasa Yamada
    Phys.Rev. D67 (2003) 065002 2002/11/15 [Not refereed][Not invited]
     
    We evaluate the decay rate of the uniformly accelerated proton. We obtain an
    analytic expression for inverse beta decay process caused by the acceleration.
    We evaluate the decay rate both from the inertial frame and from the
    accelerated frame where we should consider thermal radiation by Unruh effect.
    We explicitly check that the decay rates obtained in both frame coincide with
    each other.
  • Hisao Suzuki
    JHEP 0303:005,2003 2002/11/07 [Not refereed][Not invited]
     
    We derive the superpotential of gauge theories having matter fields in the
    fundamental representation of gauge fields by using the method of Dijkgraaf and
    Vafa. We treat the theories with one flavour and reproduce a well-known
    non-perturbative superpotential for meson field.
  • Hisao Suzuki, Eiichi Takasugi, Hiroshi Umetsu
    Progress of theoretical physics 103 (4) 723 - 731 0033-068X 1999/11/22 [Not refereed][Not invited]
     
    By using an analytic solution of the Teukolsky equation in the Kerr-de Sitter and Kerr-Newman-de Sitter geometries, an analytic expression of the absorption rate formulae for these black holes is calculated.
  • Hisao Suzuki, Eiichi Takasugi, Hiroshi Umetsu
    Prog.Theor.Phys. 102 (1999) 253-272 1999/05/13 [Not refereed][Not invited]
     
    The analytic solution of Teukolsky equation in Kerr-de Sitter and Kerr-Newman-de Sitter geometries is presented and the properties of the solution are examined. In particular, we show that our solution satisfies the Teukolsky-Starobinsky identities explicitly and fix the relative normalization between solutions with the spin weight $s$ and $-s$.
  • Hisao Suzuki, Eiichi Takasugi, Hiroshi Umetsu
    Progress of theoretical physics 102 (2) 253 - 272 0033-068X 1999/05/13 [Not refereed][Not invited]
     
    The analytic solution of Teukolsky equation in Kerr-de Sitter and Kerr-Newman-de Sitter geometries is presented and the properties of the solution are examined. In particular, we show that our solution satisfies the Teukolsky-Starobinsky identities explicitly and fix the relative normalization between solutions with the spin weight $s$ and $-s$.
  • Suzuki Hisao, Takasugi Eiichi, Umetsu Hiroshi
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 54 (1) 1342-8349 1999/03 [Not refereed][Not invited]
  • SUZUKI Hisao, TAKASUGI Eiichi, UMETSU Hiroshi
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 53 (2) 1342-8349 1998/09/05 [Not refereed][Not invited]
  • OCHIAI T, ISHIKAWA K, NAEDA N, SUZUKI H
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 53 (2) 1342-8349 1998/09 [Not refereed][Not invited]
  • Duality relation among periodic-potential problems in the lowest Landau level
    K Ishikawa, N Maeda, T Ochiai, H Suzuki
    PHYSICAL REVIEW B 58 (3) 1088 - 1091 1098-0121 1998/07 [Refereed][Not invited]
     
    Using a momentum representation of a magnetic von Neumann lattice, we study a two-dimensional electron in a uniform magnetic field and obtain one-particle spectra of various periodic short-range potential problems in the lowest Landau level. We find that the energy spectra satisfy a duality relation between a period of the potential and a magnetic length. The energy spectra consist of the Hofstadter-type bands and flat bands. We also study the connection between a periodic short-range potential problem and a tight-binding model. [S0163-1829(98)04124-1].
  • Hisao Suzuki, Eiichi Takasugi, Hiroshi Umetsu
    Prog.Theor.Phys. 100 (1998) 491-505 1998/05/18 [Not refereed][Not invited]
     
    It is well known that the perturbation equations of massless fields for the Kerr-de Sitter geometry can be written in the form of separable equations. The equations have five definite singularities so that the analysis has been expected to be difficult. We show that these equations can be transformed to Heun's equations, for which we are able to use known technique for the analysis of the solutions. We reproduce results known previously for the Kerr geometry and de Sitter geometry in the confluent limits of the Heun's functions. Our analysis applies can be extended to Kerr-Newman-de Sitter geometry for massless fields with spin 0 and 1/2.
  • Hisao Suzuki, Eiichi Takasugi, Hiroshi Umetsu
    Progress of theoretical physics 100 (3) 491 - 505 0033-068X 1998/05/18 [Not refereed][Not invited]
     
    It is well known that the perturbation equations of massless fields for the Kerr-de Sitter geometry can be written in the form of separable equations. The equations have five definite singularities so that the analysis has been expected to be difficult. We show that these equations can be transformed to Heun's equations, for which we are able to use known technique for the analysis of the solutions. We reproduce results known previously for the Kerr geometry and de Sitter geometry in the confluent limits of the Heun's functions. Our analysis applies can be extended to Kerr-Newman-de Sitter geometry for massless fields with spin 0 and 1/2.
  • Takahiro Masuda, Hisao Suzuki
    International Journal of Modern Physics A 13 (9) 1495 - 1505 0217-751X 1998/04/10 [Not refereed][Not invited]
     
    We show how to obtain the explicit form of the low energy quantum effective action for N = 2 supersymmetric Yang-Mills theory in the weak coupling region from the underlying hyperelliptic Riemann surface. This is achieved by evaluating the integral representation of the fields explicitly. We calculate the leading instanton corrections for the group SU(Nc), SO(N) and SP(2N) and find that the one-instanton contribution of the prepotentials for these groups coincide with the one obtained recently by using the direct instanton calculation. © World Scientific Publishing Company.
  • 鈴木 久男
    数理科学 サイエンス社 36 (2) 14 - 22 0386-2240 1998/02 [Not refereed][Not invited]
  • Takahiro Masuda
    International Journal of Modern Physics A 13 (18) 3121 - 3144 0217-751X 1998 [Not refereed][Not invited]
     
    In SU(2) Seiberg-Witten theory, it is known that the dual pair of fields are expressed by hypergeometric functions. As for the theory with SU(3) gauge symmetry without matters, it was shown that the dual pairs of fields can be expressed by means of the Appell function of type F4- These expressions are convenient for analyzing analytic properties of fields. We investigate the relation between the Seiberg-Witten theory of rank two gauge group without matters and hypergeometric series of two variables. It is shown that the relation between gauge theories and Appell functions can be observed for other classical gauge groups of rank two. For B2 and C2, the fields are written in terms of Appell functions of type H5. For D2, we can express fields by Appell functions of type F4 which can be decomposed to two hypergeometric functions, corresponding to the fact SO(4) ∼ SU(2) × SU(2). We also consider the integrable curve of type C2 and show how the fields are expressed by Appell functions. However in the case of exceptional group G2, our examination shows that they can be represented by the hypergeometric series which does not correspond to the Appell functions. © World Scientific Publishing Company.
  • Kenzo Ishikawa, Nobuki Maeda, Tetsuyuki Ochiai, Hisao Suzuki
    Physical Review B - Condensed Matter and Materials Physics 58 (20) R13391 - R13394 1550-235X 1998 [Not refereed][Not invited]
     
    By studying the quantum Hall effect of stationary states with high values of injected current using a von Neumann lattice representation, we found that broadening of extended state bands due to a Hall electric field occurs and causes the breakdown of the quantum Hall effect. The Hall conductance agrees with a topological invariant that is quantized exactly below a critical field and is not quantized above a critical field. The critical field is proportional to (Formula presented) and is enhanced substantially if the extended states occupy a small fraction of the system. © 1998 The American Physical Society.
  • Hisao Suzuki
    Modern Physics Letters A 12 (37) 2847 - 2858 0217-7323 1997/12/07 [Not refereed][Not invited]
     
    We show how the periods can be evaluated in Seiberg-Witten theories and in K3-fibered Calabi-Yau manifolds by using fibrations of the theories. In the Seiberg-Witten theories, it is shown that the dual pair of fields can be constructed from the classical fields in a simple form. As for Calabi-Yau manifolds which are fibrations of K3 surface, we obtain the solutions of the Picard-Fuchs equations from the periods of K3 surface. By utilizing the expression of periods for two-parameter models of type-II string, we derive the solutions of the Picard-Fuchs equations around the points of enhanced gauge symmetry and show a simple connection to the SU(2) Seiberg-Witten theory.
  • Hisao Suzuki
    International Journal of Modern Physics A 12 (28) 5123 - 5139 0217-751X 1997/11/10 [Not refereed][Not invited]
     
    The conifold singularities in the type II string are considered as the points of phase transition. In some cases, these singularities can be understood, in the framework of the conventional field theories, as the points of enhanced gauge symmetry. We consider a class of three-modulus type II strings. It is shown the periods can be written in the form of hypergeometric series around the singular points in these models. The leading expansion around the conifold locus turns out to be described by Appell functions. In one singular point, we observe the enhanced gauge symmetry of SU(2) x SU(2) independent of the models. Around another conifold locus, however, the resulting expression of the Appell functions depends on the models. We examine the result by considering a relation between these Appell functions and underlying Riemann surfaces. © World Scientific Publishing Company.
  • Ochiai T, Ishikawa K, Maeda N, Suzuki H
    Meeting abstracts of the Physical Society of Japan 社団法人日本物理学会 52 (2) 1342-8349 1997/09 [Not refereed][Not invited]
  • Takahiro Masuda, Hisao Suzuki
    International Journal of Modern Physics A 12 (19) 3413 - 3431 0217-751X 1997/07/30 [Not refereed][Not invited]
     
    We derive a simple formula for the periods associated with the low energy effective action of N = 2 supersymmetric SU(2) Yang-Mills theory with massive Nf ≤ 3 hypermultiplets. This is given by evaluating explicitly the integral associated to the elliptic curve using various identities of hypergeometric functions. Following this formalism, we can calculate the prepotential with massive hypermultiplets both in the weak coupling region and in the strong coupling region. In particular, we show how the Higgs field and its dual field are expressed as generalized hypergeometric functions when the theory has a conformal point. © World Scientific Publishing Company.
  • Takahiro Masuda, Hisao Suzuki
    Nuclear Physics B 495 (1-2) 149 - 171 0550-3213 1997/06/23 [Not refereed][Not invited]
     
    We show how to give the expression for periods, Higgs field and its dual of N = 2 supersymmetric Yang-Mills theory around the conformal point. This is achieved by evaluating the integral representation in the weak coupling region, and by using analytic continuation to the conformal point. The explicit representation is shown for the SU(2) theory with matter fields and also for pure SU(N) and pure SO(2N) theory around the conformal point where the relation to the beta function of the theory is clarified. We also discuss a relation between the fixed points in the SU(2) theories with matter fields and the Landau-Ginzburg point of 2D N = 2 SCFT. © 1997 Published by Elsevier Science B.V.
  • MANO Shuhei, SUZUKI Hisao, TAKASUGI Eiichi
    Progress of theoretical physics 理論物理学刊行会 96 (3) 549 - 565 0033-068X 1996/09/25 [Not refereed][Not invited]
     
    Analytic solutions of the Regge-Wheeler equation are presented in the form of a series of hypergeometric functions and Coulomb wave functions which have different regions of convergence.Relations among these solutions are established. The series solutions are given as the Post-Minkowskian expansion with respect to the parameter ε≡2Mω, M being the mass of a black hole.Tbis expansion corresponds to the post-Newtonian expansion when they are applied to the gravitational radiation from a particle in a circular orbit around a black bole. These solutions can also be useful for numerical computati...
  • S Mano, H Suzuki, E Takasugi
    PROGRESS OF THEORETICAL PHYSICS 95 (6) 1079 - 1096 0033-068X 1996/06 [Not refereed][Not invited]
     
    Analytic solutions of the Teukolsky equation for arbitrary spin weight in Kerr geometry are presented in the form of series of hypergeometric functions and Coulomb wave functions. Relations between these solutions are established. The solutions provide a very powerful method not only for examining the general properties of solutions and physical quantities both analytically and numerically. The solutions can be regarded as series expansions in terms of a small parameter epsilon = 2M omega, M being the mass of black hole, which corresponds to the Post-Minkowski expansion by G and to post-Newtonian expansion when they are applied to the gravitational radiation from a particle in circular orbit around a black hole. It is expected that these solutions will become a powerful weapon to construct accurate theoretical templates for LIGO and VIRGO projects.
  • Classically integrable cosmological models with a scalar field
    H Suzuki, E Takasugi, Y Takayama
    MODERN PHYSICS LETTERS A 11 (16) 1281 - 1288 0217-7323 1996/05 [Refereed][Not invited]
     
    New classes of classically integrable models in the cosmological theories with a scalar field are obtained by using the freedoms of defining time and fields. In particular, some models with the sum of exponential potentials in the flat spatial metric are shown to be integrable. The model with the sine-Gordon potential can be solved in terms of analytic continuation of the nonperiodic Toda field theory.
  • Takahiro Masuda, Hisao Suzuki
    J.Math.Phys. 38 (1997) 3669-3678 1996/04/11 [Not refereed][Not invited]
     
    It is known that the radial equation of the massless fields with spin around
    Kerr black holes cannot be solved by special functions. Recently, the analytic
    solution was obtained by use of the expansion in terms of the special functions
    and various astrophysical application have been discussed. It was pointed out
    that the coefficients of the expansion by the confluent hypergeometric
    functions are identical to those of the expansion by the hypergeometric
    functions. We explain the reason of this fact by using the integral equations
    of the radial equation. It is shown that the kernel of the equ...
  • Shuhei Mano, Hisao Suzuki, Eiichi Takasugi
    Prog.Theor.Phys. 95 (1996) 1079-1096 1996/03/13 [Not refereed][Not invited]
     
    Analytic solutions of the Teukolsky equation in Kerr geometries are presented
    in the form of series of hypergeometric functions and Coulomb wave functions.
    Relations between these solutions are established. The solutions provide a very
    powerful method not only for examining the general properties of solutions and
    physical quantities when they are applied to, but also for numerical
    computations. The solutions are given in the expansion of a small parameter
    $\epsilon \equiv 2M\omega$, $M$ being the mass of black hole, which corresponds
    to Post-Minkowski expansion by $G$ and to post-Newtonian ...
  • Hisao Suzuki
    Modern Physics Letters A 11 (8) 623 - 629 0217-7323 1996 [Not refereed][Not invited]
     
    Recently proposed mechanism of the black hole condensation at conifold singularity in type-II string is an interesting idea from which we can interpret the phase of the universal moduli space of the string vacua. It might also be expected that the true physics is on the conifold singularity after supersymmetry breaking. We derive a mass formula for the extreme black holes caused by the self-dual five-form field strength, which is stable and supersymmetric. It is shown that the formula can be written by the moduli parameters of Calabi-Yau manifold and can be calculated explicitly.
  • Shuhei Mano, Hisao Suzuki, Eiichi Takasugi
    Progress of Theoretical Physics 96 (3) 549 - 565 0033-068X 1996 [Not refereed][Not invited]
     
    Analytic solutions of the Regge-Wheeler equation are presented in the form of a series of hypergeometric functions and Coulomb wave functions which have different regions of convergence. Relations among these solutions are established. The series solutions are given as the Post-Minkowskian expansion with respect to the parameter ε=2Mω, M being the mass of a black hole. This expansion corresponds to the post-Newtonian expansion when they are applied to the gravitational radiation from a particle in a circular orbit around a black hole. These solutions can also be useful for numerical computations.
  • Mano Shuhei
    Abstracts of the meeting of the Physical Society of Japan. Sectional meeting 社団法人日本物理学会 1995 (1) 1995/09 [Not refereed][Not invited]
  • Haru-Tada Sato, Hisao Suzuki
    Mod.Phys.Lett. A9 (1994) 3673-3684 1994/10/13 [Not refereed][Not invited]
     
    We discuss the Bogoliubov transformation of the scalar wave functions caused
    by the change of coordinates in 4 dimensional de Sitter space. It is shown that
    the exact Bogoliubov coefficients can be obtained from the global coordinates
    to the static coordinates where there exist manifest horizon. We consider two
    type of global coordinates. In one global coordinates, it is shown that the
    Bogoliubov transformation to the static coordinates can be expressed by the
    discontinuous integral of Weber and Schafheitlin. The positive and negative
    energy states in the global coordinates degenerate in th...
  • ANALYTIC SOLUTIONS FOR COSMOLOGICAL FLUCTUATION EQUATIONS IN EXTENDED INFLATION MODELS
    M KUWAHARA, H SUZUKI, E TAKASUGI
    PHYSICAL REVIEW D 50 (2) 661 - 670 1550-7998 1994/07 [Refereed][Not invited]
     
    We investigate density fluctuations and gravitational waves in extended inflation models. In particular, we consider the slow starting inflation model where the scale factor increases slowly at the begininning and approaches the exponential form as t --> infinity and try to obtain analytic solutions. We find three models where all gauge-invariant variables for scalar perturbations and gravitational waves are given in analytical forms. These models may be used as a testing ground to understand predictions of the inflation models.
  • Masanori Kuwahara, Hisao Suzuki, Eiichi Takasugi
    Physical Review D 50 (2) 661 - 670 0556-2821 1994 [Refereed][Not invited]
     
    We investigate density fluctuations and gravitational waves in extended inflation models. In particular, we consider the slow starting inflation model where the scale factor increases slowly at the beginning and approaches the exponential form as t and try to obtain analytic solutions. We find three models where all gauge-invariant variables for scalar perturbations and gravitational waves are given in analytical forms. These models may be used as a testing ground to understand predictions of the inflation models. © 1994 The American Physical Society.
  • Nobuyoshi Ohta, Hisao Suzuki
    Mod.Phys.Lett. A9 (1994) 541-548 1993/10/27 [Not refereed][Not invited]
     
    We analyze the relation between a topological coset model based on super
    $SL(2,R)/U(1)$ coset and non-critical string theory by using free field
    realization. We show that the twisted $N=2$ algebra of the coset model can be
    naturally transformed into that of non-critical string. The screening operators
    of the coset models can be identified either with those of the minimal matters
    or with the cosmological constant operator. We also find that another screening
    operator, which is intrinsic in our approach, becomes the BRST nontrivial state
    of ghost number $0$ (generator of the ground ring for $...
  • M HAMA, M SAWAMURA, H SUZUKI
    PROGRESS OF THEORETICAL PHYSICS 88 (1) 149 - 153 0033-068X 1992/07 [Not refereed][Not invited]
     
    Applying the previously obtained partition functions for high order parastatistical boson systems, we calculate some thermodynamical quantities of the free parabose gas and the level density of harmonic oscillators relevant to parabosonic strings. The results are qualitatively different from those of ordinary bosons, the order two parabosons and the simplified parabosonic model often used in statistical spin systems.
  • Nobuyoshi Ohta, Hisao Suzuki
    Mod.Phys.Lett. A7 (1992) 2723-2730 1992/05/28 [Not refereed][Not invited]
     
    We study the interactions of the discrete states with nonzero ghost number in
    $c=1$ two-dimensional ($2D$) quantum gravity. By using the vertex operator
    representations, it is shown that their interactions are given by the structure
    constants of the group of the area preserving diffeomorphism similar to those
    of vanishing ghost number. The effective action for these states is also worked
    out. The result suggests the whole system has a BRST-like symmetry.
  • HAMA Mitsuru, SAWAMURA Makoto, SUZUKI Haruo
    Progress of theoretical physics 理論物理学刊行会 86 (6) 1141 - 1148 0033-068X 1991/12/25 [Not refereed][Not invited]
     
    We calculate the partition functions for the parabosonic systems of level N≦order p. The partition functions are compact, independent of p and equivalent to those of the systems of N(N-1)/2 bosonic pairs in addition to N ordinary bosons. We also present a closed form of partition function for two-level parafermion system.
  • Nobuyoshi Ohta, Hisao Suzuki
    Nuclear Physics, Section B 332 (1) 146 - 168 0550-3213 1990/02/26 [Refereed][Not invited]
     
    We discuss whether the N = 2 superconformal coset models can be described in terms of free fields by bosonizing directly the currents in the coset models. For this purpose, we develop the N = 2 superfield formalism for the N = 2 supercoset models. It is shown that this N = 2 superfield formulation naturally leads to a simple free field realization (or bosonization) of the supersymmetrized parafermionic models SU(2)/U(1) (the N = 2 minimal models) and SU(3)/U(1)2. We also discuss various relations between the bosonized forms of the currents in coset models. © 1990.
  • Masanori Kuwahara, Nobuyoshi Ohta, Hisao Suzuki
    Physics Letters B 235 (1-2) 57 - 62 0370-2693 1990/01/25 [Refereed][Not invited]
     
    The free field realization of coset (super) conformal field theories is obtained. This is achieved by first constructing the free field realization of the general Kač-Moody algebra and then by a modification of the ordinary GKO construction. In particular, it is shown that kählerian supercoset models possess N = 2 superconformal generators realized by free fields. © 1990.
  • Masanori Kuwahara, Nobuyoshi Ohta, Hisao Suzuki
    Nuclear Physics, Section B 340 (2-3) 448 - 474 0550-3213 1990 [Refereed][Not invited]
     
    It is shown that coset (super)conformal field theories may be realized in terms of dim G/H free fields. All the known Feigin-Fuchs representations, such as WAn-algebra, are shown to be obtained from this approach by particular choices of the coset spaces, and the representations of these models are discussed. The construction is generalized to supersymmetric systems and the Kählerian supercoset models, including hermitian symmetric models, are also shown to possess N = 2 superconformal symmetry realized by free fields. In particular, it is shown that CPn supercoset model can be described by free fields as an extension of N = 2 minimal superconformal models. © 1990.

Books etc

  • インテグレート科学: 現代を生きるための科学力養成講座
    鈴木久男, 細川敏幸 (Joint work)
    2018/10
  • 演習しよう量子力学―これでマスター!学期末・大学院入試問題 (ライブラリ物理の演習しよう 3)
    鈴木久男, 大谷俊介 (Joint work)
    数理工学社 2016
  • Physics II Learned by Level
    Kazuhiko Suehiro, Jun Saito, Hisao Suzuki, Akira Onodera (Joint work)
    Maruzen Publishing 2013/11
  • Physics I Learned by Level
    Kazuhiko Suehiro, Jun Saito, Hisao Suzuki, Akira Onodera (Joint work)
    Maruzen Publishing 2013/03
  • 超弦理論を学ぶための場の量子論
    鈴木久男 (Single work)
    サイエンス社 2010
  • 学生と変える大学教育−FDを楽しむという発想
    清水亮 (Joint work第13章 クイズで授業を楽しもう)
    ナカニシヤ書店 2009
  • 初歩からの物理学-物理へようこそ
    生井澤寛, 鈴木久男 (Joint work)
    放送大学出版 2008/03
  • 動画だからわかる物理 DVD付 熱力学・電磁気学編
    鈴木久男, 山田邦雅, 前田展希, 徳永正晴 (Joint work)
    丸善株式会社 2006/03
  • 動画だからわかる物理 DVD付 力学・波動編
    鈴木久男, 山田邦雅, 前田展希, 徳永正晴 (Joint work)
    丸善株式会社 2006/03
  • Introduction to Physics
    Hisao Suzuki (Joint workElectromagnetizm)
    学術図書 2004/03

Conference Activities & Talks

  • AAC&U STEM Meeting 2018の報告  [Not invited]
    鈴木久男
    大学教育学会課題研究集会  2018/12
  • Fostering Open-Ended Problem-Solving Skills of Undergraduate STEM Students: Attempts in Asian Universities  [Not invited]
    Hisao Suzuki, Keiichiro Yoshinaga, Jun Saito
    Transforming STEM Higher Education  2018/11
  • AAC&U STEM Meetingの報告  [Not invited]
    鈴木久男
    2018 Transforming Undergraduate Education in Japan  2018/02
  • AAC&U STEM Meeting2017の報告  [Not invited]
    鈴木久男
    大学教育学会課題研究集会  2017/12
  • 大学における文理融合科学教育の展望  [Not invited]
    鈴木久男
    大学教育学会  2017/06
  • アメリカの教育動向  [Not invited]
    鈴木久男
    大学教育学会誌  2016/05
  • 物理教育とテクノロジー  [Not invited]
    鈴木久男
    物理教育学会  2012/08
  • 学生応答システム“クリッカー”による双方向性授業  [Not invited]
    鈴木久男
    東北・北海道地区一般教育研究会  2008/09
  • 初等物理における能動的授業−クリッカーの威力  [Not invited]
    鈴木久男
    大学教育学会誌  2007/12
  • 能動型授業による物理学の導入教育  [Not invited]
    鈴木久男
    東北・北海道地区一般教育研究会  2006/09

MISC

  • クリッカー活用から始める高等教育の質保証(4)クリッカーによる質保証の本質
    鈴木久男  文部科学教育通信  2011年-  (8月号)  18  -19  2011/08  [Not refereed][Invited]
  • 大学における統合的科学コースのすすめ
    鈴木久男  大学教育学会誌  (31)  94  -99  2009  [Not refereed][Invited]
  • 可視化する物理−これがゲーム制作ソフトの威力なのか?
    鈴木久男  数理科学  2009年-  (1月)  14  -20  2009/01  [Refereed][Invited]
  • 思考力と読解力不足をクイズと動画でカバー - 大学初等物理教育でのクイズ形式の能動的学習
    鈴木久男  大学の物理教育  2007年-  (1)  4  -8  2007/01  [Refereed][Invited]
  • 超弦理論の厳密解を予言した超対称ゲージ理論の厳密計算」
    鈴木久男  数理科学  2006年-  (3月号)  2006/03  [Not refereed][Invited]
  • Suzuki Hisao  BUTSURI  58-  (11)  809  -815  2003/11  [Not refereed][Not invited]
     
    A rapid progress of the superstring theories has been achieved in the field of particle physics. The superstring theories are the unification theories of particles and forces. In the theories, the most of the physical quantities can be solved exactly. In reverse, this progress motivated the construction of the exact results for the gauge theories in a very different point of view. I will give here a short report of the recent progress of this subject.
  • K Ishikawa, N Maeda, T Ochiai, H Suzuki  PHYSICA E  4-  (1)  37  -55  1999/01  [Not refereed][Not invited]
     
    We construct useful sets of one-particle states in the quantum Hall system based on the von Neumann lattice. Using the set of momentum states, we develop a field-theoretical formalism and apply the formalism to the system subjected to a periodic potential. The topological formula of the Hall conductance written by the winding number of propagator is generalized to Bloch electrons. The relation between the winding number and the Chern number is clarified. (C) 1999 Elsevier Science B.V. All rights reserved.
  • 双対性の衝撃、素粒子理論最前線に何がおこったか?
    鈴木久男  数理科学  1998年-  (別冊)  14  -22  1998/04  [Not refereed][Invited]
  • ISHIKAWA K, MAEDA N, OCHIAI T, SUZUKI H  Physical Review B  58-  (3)  1088  -1091  1998  [Not refereed][Not invited]
  • Seiberg-Witten理論の数理
    鈴木久男  数学セミナー  1997年-  (8月)  8  -13  1997/08  [Not refereed][Invited]

Awards & Honors

  • 2006/03 Soryshiron group Soryushi medal
     Adovocation of Kazama-Suzuki model 
    受賞者: Yoichi Kazama;Hisao Suzuki

Research Grants & Projects

  • STEM領域での問題解決能力育成と評価についての研究
    文部科学省:科学研究費補助金 基盤研究(C)
    Date (from‐to) : 2019/04 -2022/03 
    Author : 鈴木久男
  • 学問に根ざした大学教育の学修成果向上のための教授法・人材・組織の一体的な開発研究
    文部科学省:科学研究費補助金 基盤研究(B)
    Date (from‐to) : 2019/04 -2020/03 
    Author : 大森不二雄
  • IRによるカレッジ・インパクト理論の検証とSTEM教育評価モデルの構築
    文部科学省:科学研究費補助金 基盤研究(B)
    Date (from‐to) : 2017/04 -2020/03 
    Author : 細川敏幸
  • 物理教育におけるアクティブ・ラーニングの国際比較研究
    文部科学省:科学研究費補助金 挑戦的研究(萌芽)
    Date (from‐to) : 2017/06 -2019/03 
    Author : 吉永契一郎
  • 全米大学協会STEM教育の調査研究
    文部科学省:科学研究費補助金 基盤研究(C)
    Date (from‐to) : 2016/04 -2019/03 
    Author : 鈴木久男
  • Ministry of Education, Culture, Sports, Science and Technology:Grants-in-Aid for Scientific Research(特定領域研究)
    Date (from‐to) : 2004 -2009 
    Author : Kenzo ISHIKAWA, Hihao SUZUKI, Kazuhiko SUEHIRO, Nobuki MAEDA, Suguru DOBASHI, Kenji HOTTA, Yutaka TOBITA, Masakazu SANO
     
    Two topics on high energy physics, on physics of high precision experiments, and on dynamical properties of supersymmetric theory were analyzed. Many body amplitudes for the measurements of the particle's position and momentum was developed with wave packet in quantum field theory. Various properties of supersymmetric field theory and string theory were found and and its implications to cosmology were made.
  • Ministry of Education, Culture, Sports, Science and Technology:Grants-in-Aid for Scientific Research(基盤研究(B))
    Date (from‐to) : 2004 -2006 
    Author : Masaaki OGASAWARA, 西森 敏之, 栃内 新, 細川 敏幸, 宇田川 拓雄, 小野寺 彰, 鈴木 久男, 吉永 契一郎
     
    In this research, we focus our attention on the teaching of basic sciences in research universities in Japan. The level and contents of the courses were analyzed in comparison with the counterparts in the United States and the United Kingdom. At the same time, we developed model courses to coped with the new type of students, those skills and ability were much more diverse in comparison with traditional students.First, we visited some of the advanced universities famous for unique and effective science education. In particular, introductory chemistry, Chem 1A, in the University of Californi...
  • Ministry of Education, Culture, Sports, Science and Technology:Grants-in-Aid for Scientific Research(基盤研究(C))
    Date (from‐to) : 1999 -2002 
    Author : Hisao SUZUKI
     
    The various phases of super Yang-Mills theories and superstrings can be analyzed through the power of exact solutions. The main aim of the project was the analysis of the phases of these theories. There is a rapid progress in the fields of exact solutions of supersymmetric Yang-Mills theories. Recently, Dijkgraaf and Vafa made a conjecture that exact superpotential can be obtained via matrix integration. They derived this results for the superpotential for adjoint matter multiplets. We derive the superpotential of gauge theories having matter fields in the fundamental representation of gaug...
  • Ministry of Education, Culture, Sports, Science and Technology:Grants-in-Aid for Scientific Research(特定領域研究(B))
    Date (from‐to) : 1998 -2001 
    Author : Yoichi KAZAMA, 鈴木 久男, 加藤 晃史, 久後 太一
     
    Kazama clarified the quantum mechanical origin of the conformal symmetry on the gauge theory side, which plays the pivotal role in the AdS/CFT correspondence. Further, he showed that conformal symmetry exists in a generalized sense in more general theories including the Matrix model for M theory. He then made, for the first time, a detailed study of the role of supersymmetry in determining the fully off-shell effective action of a DO particle. He obtained the complete effective action and the supersymmetry transformations at order 4 in the derivative expansion and rigorously proved a number...
  • 文部科学省:科学研究費補助金(特定領域研究(A))
    Date (from‐to) : 2000 -2000 
    Author : 石川 健三, 末廣 一彦, 鈴木 久男
     
    完全に縮退した一粒子状態からなる極めて特異な量子的な物理系である量子ホール系での諸問題,空間反転や時間反転を破る凝縮系物理,超対称ゲージ理論、ニュートリノ振動,並びにブラックホール等について次の成果がえられた。(1)整数量子ホール効果の量子化が縦抵抗が有限な値をとる時にも成立する新しい量子ホール領域が存在することが示された。(2)量子ホール系での圧縮性ガス状態が、量子ホール系では運動エネルギーが相互作用から生ずるものであるため、負の圧縮率をもつ特異な状態であることが示された。さらに、この状態を流れる電流はトンネル効果により生ずるため特異な温度依存性、電流依存性を示す実験結果とも合致することがしめされた。(3)非可換座標を持つ場の理論としての量子ホールガスの特異な性質が解明された。(4)時間や空間の反転に対して不変でない超伝導では量子ホール系と同様に電磁場に対するChern-Simons項が導かれる。この際、磁場の代わりをp波のCooper対凝縮がし、またU(1)対称性が破れているためChern-Simons項の係数には補正があること等について解明された。(5)場の理論に基ずいてニュートリノが中間状態にあるとするニュートリノ振動の新しい解析が行われた。(6)ブラックホールの吸収係数に関する解析的な研究をおこない、ブラックホールからのさまざまなスピンを持つ粒子の波動関数を解析し、...
  • 文部科学省:科学研究費補助金(特定領域研究(A))
    Date (from‐to) : 1999 -1999 
    Author : 石川 健三, 末廣 一彦, 鈴木 久男
     
    完全に縮退した一粒子状態からなる極めて特異な量子的な物質系である量子ホール系での諸問題並びに関連する空間反転や時間反転を破る凝縮系物理について次の成果がえられた。(1)整数量子ホール効果の量子化が有限サイズや有限電流の系でも強磁場中では厳密に成立し有限サイズ補正が消失すること、電流が小さいときには量子化が厳密に成立する量子ホール領域があること、電流が大きくなると量子ホール領域が消失する"breakdown"現象が起きること、この際の臨界ホール電場は磁場の1。5乗に比例すること、等が示された。また周期系についての双対性やtight-binding模型との関連が解明された。(2)量子ホール系での圧縮性ガス状態が、量子ホール系では運動エネルギーが相互作用から生ずるものであるため、負の圧縮率をもつ特異な状態であることが示された。さらにその結果縦抵抗が有限な値をとる時にもホール抵抗の厳密な量子化が起こることがしめされた。(3)また分数量子ホール効果について、相互作用によりfluxが凝縮し、Hofstadterのbutterflyスペクトルと同様なものになる一粒状態を持つflux相に基ずく新しい平均場理論が提案された。この意味で、Hofstadterのbutterflyスペクトルと分数量子ホール効果の関連が初めて明らかにされた。(4)時間や空間の反転に対して不変でない超伝導では量子ホール...
  • Ministry of Education, Culture, Sports, Science and Technology:Grants-in-Aid for Scientific Research(国際学術研究, 基盤研究(B))
    Date (from‐to) : 1998 -1999 
    Author : Kenzo ISHIKAWA, Jackiw Roman, Wiegmann Pau, 細谷 裕, 中山 隆一, 河本 昇, 鈴木 久男, 末廣 一彦
     
    In this project, fundamental problems of low dimensional physical systems such as field theory of quantum Hall effects, quantum gravity, super string, and super symmetric gauge theory and others are investigated and the following results have been obtained:(1)Compressible gas states of quantum Hall system have been established based on Hartree Foch theory on von Neumann lattice. They have anisotropic density moduration, nagative pressure and compressibility. Negative pressure leads quantum Hall effect to have unusual stability. Generalized flux state which connects fractional Hall effect wi...
  • 文部科学省:科学研究費補助金(特定領域研究(A))
    Date (from‐to) : 1998 -1998 
    Author : 石川 健三, 末廣 一彦, 鈴木 久男
     
    量子場の相の解析並びに相との関連でcpの破れを研究するのが本計画の目的であるが、特に量子ホール効果、cpを破る超伝導・超流動、超対称ゲージ理論における臨界点上での物理に関して今年度次の成果が上がった。(1) 量子ホール効果von Neumann格子表現を使うことより量子ホール系に周期ポテンシャルがある時のスペクトル、その双対性、並びにホール伝導度のトポロジカル不変な表示が得られた。また、量子ホール効果の“breakdown"現象の解明、等がなされた。(2) 空間反転・時間反転対称性を破る超伝導・超流動で電磁ベクトルポテンシャルに対するチャーン・サイモン項が導かれること、並びにその係数はトポロジカル不変な項に加えてNambu-Goldstoneモードからの補正を受けてでてくるトポロジカル不変でない項からなること。(3) 偶数次元チャーン・サイモン理論の量子化偶数次元チャーン・サイモン理論の量子化が2次元理論で詳しく解析され、無限にreducibleなゲージ理論として量子化がなされた。(4)2次元量子重力理論の力学的性質が単体分割での表示により求められた。(5)N=2超対称ゲージ理論の弱結合領域での性質や特異点近傍での性質が解明された。
  • 文部科学省:科学研究費補助金(奨励研究(A))
    Date (from‐to) : 1997 -1998 
    Author : 鈴木 久男
     
    超弦理論についての相転移点まわりでの解析を行なった。これは、あるひとつの超弦理論については弱結合ではあるが、そのインスタントン補正の計算は困難であることが知られている。一方、この解析は,双対性を用いると別の超弦理論について古典的計算でこのインスタントン補正の計算を行なうことができる。そして、超弦理論の双対性の低エネルギー極限を考えるとゲージ理論の双対性を導出することができる。一般的にみて、このような解析は定性的には行なわれていたが、重力の効果を含んだ形で一般的に行なうことは困難であった。具体的には超弦理論の相転移点付近は強結合領域にあたり、そのまわりでの物理量を求める技術がなかった。本年度の研究実績としては、この相転移点まわりでの物理量を求める新しい方法を開発したことである。前年度までの研究により、場の量の候補を系統的に導き出手段が解っていたが、それを、物理的なものに組み直すためにそれらの場の量2つより、数を生み出す形式を作成しそれにより、物理的な場を選び出すことができることを示した。このような一般的な手段の開発により、サイバーグウィッテン理論の超弦理論的な補正項を計算することができた。
  • 文部科学省:科学研究費補助金(重点領域研究)
    Date (from‐to) : 1997 -1997 
    Author : 石川 健三, 末廣 一彦, 鈴木 久男
     
    研究実績の概要無限多粒子系では複数の相異なる相が存在することが多くそれらの相の性質や相の間の転移を解明することが重要な課題である。相の持つ性質は、その対称性により分類される。対称性の一つとして、時間反転に対する不変性がある。時間反転に対する不変性が破れた時、不変性を保つ物理系とは異なる性質を示す。この性質解明には、演算子として次元の低い、低エネルギー領域で重要な働きをするChern-Simons項が重要な働きをする。本研究では、特にChern-Simons項に関連した量子場の相の諸性質の解明、CPの破れ、並びにCPの破れた相の性質解明の研究を行ない、次に挙げる点について理解が進展した。1。凝縮系を含む広範囲にわたる物理系での時間反転不変性を破る物理現象で重要な働きをしているChern-Simons項に関して、Chern-Simons項の導出、性質解明が進み、また関連する物理として、量子ホール効果、超流動ヘリウム他等に関しての理解が進展した。2。Chern-Simonsゲージ理論の偶数次元への拡張と時空2次元理論での量子化並びに重力理論への応用の議論がなされた。一般化されたChern-Simonsゲージ理論の代数が無限回既約であることがしめされた。3。共形不変な点近傍における強結合相での特殊な超対称ゲージ場の性質ならびに超弦理論の性質の理解が進展した。共形不変な点近傍において成...
  • Ministry of Education, Culture, Sports, Science and Technology:Grants-in-Aid for Scientific Research(国際学術研究)
    Date (from‐to) : 1995 -1996 
    Author : Noboru KAWAMOTO, Petersen Jen, Ulesen Poul, Nielsen Holg, Ambjorn Jan, 末廣 一彦, 中山 隆一, 石川 健三, Damgaard Pou, Petersein Je, Olesen Poul, 鈴木 久男, DAMGAARD Pou, PETERSEN Jen, NIELSEN Holg, OLESEN Poul, AMBJORN Jan
     
    This has been a very intensive exchange program. The followings are the collaborations between the members of two groups :1) Numerical simulations of two-dimensinal lattice quantum gravity for c=-2 model.2) Lattice gravity for 3-dimensional Ashtekar formalism.3) Non-critical open strings.There are further cooperative discussions which may have influenced the following subjects :1) Quantization of generalized Chern-Simons actions in arbitrary dimensions.2) Two-dimensional quantum gravity and strings.3) Quantum hall effects.4) Non-perturbative aspects of supersymmetric Yang-Mills theories.
  • Ministry of Education, Culture, Sports, Science and Technology:Grants-in-Aid for Scientific Research(一般研究(C), 基盤研究(C))
    Date (from‐to) : 1994 -1996 
    Author : Kiyoshi HIGASHIJIMA, 栗本 猛, 鈴木 久男, 太田 信義, 窪田 高弘, 高杉 英一, 田中 実, 中津 了勇
     
    Symmetry breaking in field theory is caused by some instability. Instability in one-particle problem triggers classical instability. In classically stable systems, symmetry sometimes breaks down by quantum instability. In these cases, instability does not show up unless one examines bound state spectrum. Relativistic bound states problems have various difficulties since we have to renormalize the theory in non-purturbative way. In asymptotic free field theory, however, we can overcome these difficulties. When the attractive force between massless quark and anti-quark is strong enough to mak...
  • 文部科学省:科学研究費補助金(奨励研究(A))
    Date (from‐to) : 1995 -1995 
    Author : 鈴木 久男
     
    現在、素粒子論において、重要な問題の一つは、重力の量子化にある。ミクロな領域では、重力の揺らぎが支配的になり、くりこみ理論における、すべての発散も重力により、安定化されると予想される。その取り扱いについて、次のような、いくつかの進展がみられた。重力の量子化の最も体系的な記述のひとつに、超弦理論がある。現在、大きな問題は、摂動的に安定な超弦理論が、多数知られており、また、それらは、互いに独立で、繋ぐことが、できなかった。しかし、最近ひとつのメカニズムが提唱された。それは、ブラックホールの凝縮による相転位である。こに、一見革新的なアイデアは、つぎの事柄をつなぎ合わせたものである。その一つは、すべての粒子は、古典的にはブラックホールとみなせるということ。また、一般に超対称性のある理論においては、古典的に、超対称性を持つ極限的ブラックホールが、安定であると言うことである。すなわち、ここでいう、ブラックホールとは、ある、粒子を指しており、決して宇宙に存在するような、大規模な物ではない。そして、内部空間が、もはや多様体とみなせないような時には、このブラックホールの質量が0になり、相転位をひきおこすのではないかという理論的観測がなされていた。今回の研究では、このブラックホールの質量公式を導き、研究雑誌に掲載予定である。また、本年度精力的に研究した事柄に、ブラックホールのゆらぎについての、解...
  • Ministry of Education, Culture, Sports, Science and Technology:Grants-in-Aid for Scientific Research(総合研究(A))
    Date (from‐to) : 1993 -1995 
    Author : Masao NINOMIYA, 上原 正三, 畑 浩之, 中西 襄, 加藤 光裕, 北沢 良久, 藤川 和男, 松尾 泰, 中山 隆一, 風間 洋一, 江口 徹
     
    In the final year of this research project there are reported numerous important achievements. Some main results are described below.1.M.Ninomiya, together with Y.Kitazawa (investigator) and H.Kawai (Professor of KEK) , constructed to study in detail a theory fo a quantum gravity in 2+epsilon dimensions by using a nonperturbative methos in quantum field theory. In 1996, it was proven by induction that the theory is renormalizable in all orders in perturbation theory. It is the first time that a consisitent quantum gravity in higer dimensions was given. The theory may be a new starting point...

Educational Activities

Teaching Experience

  • 物理学卒業研究Ⅱ
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 理学部
  • Elementary Particle Physics
    開講年度 : 2018
    課程区分 : 修士課程
    開講学部 : 理学院
    キーワード : 素粒子理論、超対称性理論、超弦理論
  • Inter-Graduate School Classes(General Subject):Inter-Disciplinary Sciences
    開講年度 : 2018
    課程区分 : 修士課程
    開講学部 : 大学院共通科目
    キーワード : 高等教育、大学教員、授業設計、カリキュラム設計、模擬授業
  • The World of Science and Technology
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 全学教育
    キーワード : サイエンス、自然科学、物質と法則
  • The World of Science and Technology
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 全学教育
    キーワード : サイエンス、自然科学、進化、宇宙の歴史
  • Laboratory Exercise in Natural Sciences
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 全学教育
    キーワード : 実験、物理、化学、生物
  • Elementary Particle Physics
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : 素粒子理論、量子論、暗黒物質、暗黒エネルギー、初期宇宙論
  • Research Work in Physics I
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : 物理学
  • Research Work in Physics II
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : 物理学
  • Special Lectures for Modern Physics
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : アクティブラーニング、物理学、
  • Special Lectures for Modern Physics A
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : アクティブラーニング、物理学、
  • Reading of Original Articles in Physics I
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 理学部
    キーワード : 物理学、量子力学、統計力学、電磁気学
  • Reading of Original Articles in Physics I
    開講年度 : 2018
    課程区分 : 学士課程
    開講学部 : 理学部

Campus Position History

  • 2013年4月1日 
    2015年3月31日 
    教育改革室室員
  • 2015年4月1日 
    2017年3月31日 
    教育改革室室員
  • 2019年4月1日 
    Present 
    教育改革室室員
  • 2019年4月1日 
    Present 
    高等教育推進機構副機構長

Position History

  • 2013年4月1日 
    2015年3月31日 
    教育改革室室員
  • 2015年4月1日 
    2017年3月31日 
    教育改革室室員
  • 2019年4月1日 
    Present 
    教育改革室室員
  • 2019年4月1日 
    Present 
    高等教育推進機構副機構長


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