New phase structure of the Nambu -- Jona - Lasinio model at nonzero chemical potential

Details New phase structure of the Nambu -- Jona - Lasinio model at nonzero chemical potential New phase structure of the Nambu -- Jona - Lasinio model at nonzero chemical potential

1997-01-14

arxiv.org/abs/hep-ph/9701288v1

JETP Lett. 64 (1996) 338-344; Pisma Zh.Eksp.Teor.Fiz. 64 (1996) 313-318

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, no figures.

Scientific paper

10.1134/1.567200

It is shown that in the Nambu -- Jona - Lasinio model at nonzero chemical
potential there are two different massive phases with spontaneously broken
chiral symmetry. In one of them particle density is identically zero, in
another phase it is not equal to zero. The transition between phases is a phase
transition of the second order.

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