Vacuum Energies and Effective Potential in Light-Cone Field Theories

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概要

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• Vacuum energies are computed in light-come field theories to obtain effective potentials which determine vacuum condensate. Quantization surfaces interpolating between the light-like surface and the usual spatial one are useful to define the vacuum energies unambiguously. The Gross-Neveu, SU(N) Therring and O(N) vector models are worked out on the large N limit. The vacuum energies are found to be independent of the interpolating angle to define the quantization surface. Renormalization of effective potential is explicitly performed. As an example of the case with nonconstant order parameter, two-dimensional QCD is also studied. Vacuum energies are explicitly obtained in the large N limit which give the gap equation as the stationary point.

• 理論物理学刊行会の論文
• 1996-03-25

著者

• 坂井 典佑

  東工大理

• SAKAI Norisuke

  Department of Mathematics, Tokyo Woman's Christian University

• SAKAI Tadakatsu

  Department of Physics, Nagoya University

• 坂井 典佑

  東京工業大学理学部 素粒子論研究室

• Sakai Norisuke

  Department Of Mathematics Tokyo Woman's Christian University

• KOJIMA Shin-ichi

  Department of Electronic Engineering, Graduate School of Engineering, Osaksa University

• Sakai Tadakatsu

  Raymond And Beverly Sackler Faculty Of Exact Sciences School Of Physics And Astronomy Tel-aviv Unive

• Sakai Tadakatsu

  Department Of Physics Tokyo Institute Of Technology

• Sakai Tadakatsu

  Department Of Mathematical Sciences Faculty Of Sciences Ibaraki University

• 坂井 典佑

  高エ研

• SUGIURA Norimasa

  Department of Physics, Kyoto University

• SAKAI Nobuyuki

  Yukawa Institute for Theoretical Physics, Kyoto University

• Kojima Shin-ichi

  Department Of Physics Tokyo Institute Of Technology

• Kojima Shin-ichi

  Department Of Electronic Engineering Graduate School Of Engineering Osaksa University

• SAKAI Tadakatsu

  Yukawa Institute for Theoretical Physics, Kyoto University

• KOJIMA Shin-ichi

  Department of Chemistry, Faculty of Science and Technology, Keio University

• SAKAI Tadakatsu

  Raymond and Beverly Sackler Faculty of Exact Sciences, School of Physics and Astronomy, Tel-Aviv University

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