“Fine-tuning” renormalization and associated constants in a nonrelativistic four-fermion model
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Exact solutions of a two-particle eigenvalue problem are obtained for a four-fermion contact interaction. Composite Goldstone modes are found. A relationship, is found between the renormalization procedure and the construction of self-adjoint solutions.
KeywordsRenormalization Procedure Galilean Invariance Renormalize Solution Dimensional Transmutation Quadratic Spectrum
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- 1.H. Umezawa, H. Matsumoto, and M. Tachiki, Thermo-Field Dynamics and Condensed States, North Holland Publishing Co., Amsterdam (1982).Google Scholar