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Gaussian approximation of the (2 + 1)-dimensional Gross-Neveu model

Title
Gaussian approximation of the (2 + 1)-dimensional Gross-Neveu model
Authors
Kim S.K.Soh K.S.Yee J.H.
Ewha Authors
김성구
SCOPUS Author ID
김성구scopusscopus
Issue Date
1990
Journal Title
Physical Review D
ISSN
0556-2821JCR Link
Citation
vol. 41, no. 4, pp. 1345 - 1348
Indexed
SCOPUS scopus
Abstract
The (2 + 1)-dimensional Gross-Neveu model is analyzed by the Gaussian approximation in the functional Schrödinger picture. It is shown that the Gaussian effective potential implies the existence of two phases, and one of them is inconsistent. In the phase where the bare coupling constant approaches positive infinitesimal, the effective potential shows the existence of dynamical symmetry breaking when the renormalized coupling constant is negative. © 1990 The American Physical Society.
DOI
10.1103/PhysRevD.41.1345
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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