Bound State Spectrum of SU(N) Massive Gross-Neveu Model
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概要
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Applying the infinite momentum frame technique, we solve the charge zero sector of the SU(N) massive Gross-Neveu model. For positive charge conjugation state (C=l), the boson spectrum at large N limit is equivalent to the result obtained from light cone approach with mean field approximations. The bound state energy behaves similar to that of semiclassical calculation and the leading term appears at 1/N^2 order. Also, there is a negative charge conjugation state (C=-1). This spectrum is found to be identical to that of the U(l) massive Thirring model for any value of N. Further, we find a phase transition at some critical coupling for N=0 case, which may correspond to that of the random bond Ising model.
- 理論物理学刊行会の論文
- 1995-01-25
著者
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FUJITA Tomoyuki
Department of Physics, Kyoto University
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FUJITA Takehisa
Department of Pediatrics, Nippon Medical School
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Fujita Takehisa
Department Of Pediatrics Nippon Medical School
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SEKIGUCHI Tetsuji
Department of Physics, Faculty of Science and Technology Nihon University
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Sekiguchi Tetsuji
Department Of Physics Faculty Of Science And Technology Nihon University
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Fujita Toshimitsu
Department of Physics, Kyoto University
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