著者

兵頭 俊夫

出版者

一般社団法人日本物理学会

雑誌

日本物理學會誌 (ISSN:00290181)

巻号頁・発行日

vol.63, no.3, pp.221-224, 2008-03-05

被引用文献数

1

著者

大槻 義彦

出版者

一般社団法人日本物理学会

雑誌

日本物理学会誌 (ISSN:00290181)

巻号頁・発行日

vol.30, no.5, pp.321-329, 1975

著者

西條 統之 真貝 寿明 前田 恵一

出版者

一般社団法人日本物理学会

雑誌

日本物理学会講演概要集. 秋の分科会

巻号頁・発行日

vol.1996, no.1, 1996-09-13

著者

高野 浩志

出版者

一般社団法人日本物理学会

雑誌

日本物理学会講演概要集 (ISSN:2189079X)

巻号頁・発行日

vol.70, no.2, 2015-09-16

著者

鈴木 貞吉

出版者

一般社団法人日本物理学会

雑誌

日本物理学会講演概要集 (ISSN:13428349)

巻号頁・発行日

vol.55, no.2, 2000-09-10

著者

李 東奎 津江 保彦

出版者

一般社団法人日本物理学会

雑誌

日本物理学会講演概要集 (ISSN:13428349)

巻号頁・発行日

vol.67, no.2, 2012-08-24

著者

Iwata Yutaka Koyano Nobumitsu Shibuya Iwao

出版者

一般社団法人日本物理学会

雑誌

Journal of the Physical Society of Japan (ISSN:00319015)

巻号頁・発行日

vol.49, no.1, pp.304-307, 1980-07-15

被引用文献数

1 47

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Hydrogerx atoms in fezroelectric phase of CSH.PO4 have been located frounlow tentperature neutron diffraction experimetat. Chains of hydrogen bondsextendiucg to both the crystallographic b- and c-axes are confirmed. The hydrogenatom in a shorter 0-I-[? = O bond becomes ordered ?tt low temperature phase withb6nd length 0-H-=1.02A auad H-0=1'.46A. Structural change?.be]ow T.shows that the laydrogen ordering acconapanies a slight rotation of P04 tetra-hedron about the one P-0 bond.

著者

小河 一敏 山中 千博 池谷 元伺 伊藤 英司

出版者

一般社団法人日本物理学会

雑誌

日本物理学会講演概要集. 秋の分科会

巻号頁・発行日

vol.1995, no.3, 1995-09-12

著者

横山 浩 井上 貴仁 伊藤 順司

出版者

一般社団法人日本物理学会

雑誌

日本物理學會誌 (ISSN:00290181)

巻号頁・発行日

vol.49, no.4, pp.281-286, 1994-04-05

参考文献数

16

被引用文献数

1

---

走査型トンネル顕微鏡の誕生というコロンブスの卵は,原子間力顕微鏡をはじめとするSPM(走査型プローブ顕微鏡)と呼ばれる顕微鏡技術の一族に成長・進化し,現在では,表面の形状に留まらず様々な物性・機能をも局所的に観測し画像化する表面解析技術として,著しい発展を見せている.筆者らは,表面電位,誘電率などの電気物性をナノメートルオーダーの分解能で計測するSPMとして,走査型マクスウェル応力顕微鏡(SMM)の開発をすすめている.SMMは,原子間力顕微鏡と同様に,探針に働く力を検出するタイプのSPMであり,外部交流電圧により誘起される強制振動電気力の測定のみから,表面の様々な電気的情報を同時に引き出せることを特徴とする.ここでは,金属薄膜の接触電位差や有機分子薄膜の相分離構造の微視的観察の例を交えて,その概要を紹介する.

著者

中村 孔一

出版者

一般社団法人日本物理学会

雑誌

大学の物理教育 (ISSN:1340993X)

巻号頁・発行日

vol.99, no.2, pp.4-8, 1999-07-15

著者

Shirafuji Takeshi

出版者

一般社団法人日本物理学会

雑誌

Progress of theoretical physics (ISSN:0033068X)

巻号頁・発行日

vol.70, no.1, pp.18-35, 1983-07-25

被引用文献数

1 128

---

Lagrangian mechanics of massless particles with spin is studied, based on the interpretation that spin corresponds to displacement in complex directions. Starting with the action integral which ensures the masslessness of particles, two possibilities to introduce spin are investigated. In both cases, the equations of motion cannot fix the world line of massless spinning particles uniquely, due to a "gauge" invariance property of the action integral. The space-time coordinates are not the most suitable for describing massless spinning particles, but it is convenient to take a pair of spinor variables, i.e., a twistor, as the basic dynamical variables to which the canonical quantization procedure can be applied. In one of the two cases, where massless particles are considered to move in superspace with N spinor coordinates, it is found that massless particles form a spin (or helicity) multiplet with the helicity running from - N/4 to + N/4.

著者

Sakamoto Toshio

出版者

一般社団法人日本物理学会

雑誌

Progress of theoretical physics (ISSN:0033068X)

巻号頁・発行日

vol.78, no.2, pp.423-434, 1987-08-25

被引用文献数

1

---

In the method of stochastic quantization proposed by Parisi and Wu, the Langevin equation is set by using an additional fictitious time. The results of the usual quantization are obtained by taking the infinite limit of the time. For a system with a special class of potential, however, it is also possible to formulate the stochastic quantization based on the Langevin equation associated with the ordinary time. Applying this method, we investigate the stochastic quantization of the open-ends Nambu-Goto string. It is shown that the effective action derived out of the Langevin equation of the string has the form of a supersymmetric string, though the fermionic degrees of freedom are ghost variables.

著者

Takabayasi Takehiko

出版者

一般社団法人日本物理学会

雑誌

理論物理学の進歩 (ISSN:0033068X)

巻号頁・発行日

vol.49, no.5, pp.1724-1745, 1973-05-25

被引用文献数

1

---

Classical theory of a relativistic string is formulated based on the parameter representation x_μ=x_μ(σ,τ) for the world strip swept by its motion. The necessity of the physically unam-biguous interpretation of this many-time formalism requires certain conditions. Invariance under the scale transformation of parameters is stressed. The physical meaning of τ is clarified. Besides the equation of motion and boundary condition which follow from the variational principle additional constrain t equations are needed to ensure a well-defined model without tachyonic solutions. The quantization of this classical theory is made in the usual way in the Heisenberg picture with respect to τ. Then by going over to the Schrodinger picture the parameter τ is automatically eliminated and we are left with a wave equation alone. Moreover this equation and the constraint equation are incorporated into a single "detailed wave equation", which was given previously as the fundamental equation of the quantum mechanics of a relativistic string. Case of external interaction is briefly treated.

著者

Kamimura Kiyoshi

出版者

一般社団法人日本物理学会

雑誌

Progress of theoretical physics (ISSN:0033068X)

巻号頁・発行日

vol.65, no.5, pp.1704-1718, 1981-05-25

---

A set of models of extended objects in space-time is studied using geometrical language. They are natural generalization of the relativistic point particle to extended objects in Minkowski space. The relativistic string model is one of the examples and its properties are studied in some detail. The time like oscillation mode, which gives rise to ghost state in quantum theory, is always suppressed by the geometrical construction in this approach.

著者

Kamo Hideki Sohkawa Tohru

出版者

一般社団法人日本物理学会

雑誌

Progress of theoretical physics (ISSN:0033068X)

巻号頁・発行日

vol.57, no.5, pp.1749-1760, 1977-05-25

被引用文献数

1

---

A possible theory of an open membrane is proposed. The space-time coordinates, swept out by the membrane, are denoted as X^μ(σ^0,σ^1, σ^2) where σ^a are parameters. A simple Lagrangian which is invariant under the re-parametrization σ^0→σ^0'(σ), σ^1'=σ^1 and σ^2'=σ^2 is set up and the equations of motion and the boundary conditions are derived. After the gauge is fixed, they are solved in the case where the membrane rotates rigidly and the mass-spin relation is obtained which is not infinitely increasing.

著者

Takabayashi Takehiko

出版者

一般社団法人日本物理学会

雑誌

理論物理学の進歩 (ISSN:0033068X)

巻号頁・発行日

vol.51, no.1, pp.262-283, 1974-01

被引用文献数

4

---

In this and succeeding papers we reconstruct the theory of relativistic string, taken as a model of hadrons, in a general and unifying framework. In this paper the classical foundation of the "realistic" string theory is clarified. The theory is derived from the action integral which is invariant under "partial general transformation" on the parameters (σ,τ) for the world sheet traced by a motion of the string, and the fundamental equations are originally covariant under this group. Then by choosing a suitable gauge we obtain Lorentz-covariant formalism associated with constraints. We analyze its characteristics and obtain solutions. Taking another gauge we get the equivalent "Lorentz non-cavariant formalism" free from constraint. This directly exhibits the physical meaning of the theory and also leads to its standard Hamiltonian formalism. Several conservation laws characteristic to our string theory are given.

著者

Takabayasi Takehiko

出版者

一般社団法人日本物理学会

雑誌

理論物理学の進歩 (ISSN:0033068X)

巻号頁・発行日

vol.47, no.3, pp.1026-1046, 1972-03-25

被引用文献数

2

---

The theory of detailed wave equation (DWE), which represents relativistic quantum dynamics of an extended system with external interaction for a specific value of Regge intercept, avoiding ghost states and leading to dual amplitude, is further developed in several respects. The original formulation (the σ-formalism) for the string model is transcribed into a few equivalent formalisms. In the λ-formalism the invariance of DWE against the "Hilbert transform" becomes manifest. Finite "gauge transformations", under which the theory is invariant, are explicitly obtained for the consideration of their structural meaning. The original string model is generalized to the hybrid model, where each element constituting the string is endowed with internal "Fermi oscillator variables", in the framework of DWE, which now fixes the Regge intercept at the value lower than the original one by 1/2 unit or its multiples. In particular the hybrid model with vector Fermi variables, which implies "double-string" consisting of Dirac-like elements, is treated, where our vector Fermi variables differ from those in similar models by other authors with respect to their reality and Lorentz properties and are free from the introduction of additional indefinite metric. Moreover our theory is invariant under space reflection.

著者

Ruggeri T. Strumia A.

出版者

一般社団法人日本物理学会

雑誌

Progress of theoretical physics (ISSN:0033068X)

巻号頁・発行日

vol.59, no.6, pp.2121-2132, 1978-06-25

被引用文献数

5

---

Euler-Lagrange equations of a relativistic massive string are analysed from the stand-point of non-linear wave propagation theory. Complete exceptionality is shown to hold, while strict exceptionality (usual in non-linear physical theories) appears only for non-vanishing value of the masses at the ends, when time-like or light-like gauge specification is employed.

著者

Takabayasi Takehiko

出版者

一般社団法人日本物理学会

雑誌

Progress of theoretical physics (ISSN:0033068X)

巻号頁・発行日

vol.52, no.6, pp.1910-1928, 1974-12-25

被引用文献数

9

---

Theory of "geometric" string, recently employed as a model of hadrons, is represented in a form covariant under general transformation of parameters ("coordinates") by the aid of tensor analysis. It is shown that this approach is essentially simple and transparent and works to clarify subtle points in the relativistic kinematics and mechanics of the geometric string. The method is applied to the treatment of conformal invariance, "static solutions" and single-time formalism. Relativistic string with intrinsic rotational degrees is presented, also on the basis of the general-covariant approach. This new model allows a charge distribution along the string. Analogy of the "general-covariant" string theory to general relativity as well as its distinction therefrom is explained.

著者

TAKABAYASHI Takehiko

出版者

一般社団法人日本物理学会

雑誌

Progress of theoretical physics (ISSN:0033068X)

巻号頁・発行日

vol.44, no.5, pp.1429-1430, 1970-11-25

被引用文献数

9