SPONTANEOUS SYMMETRY BREAKING IN A SYSTEM OF STRONGLY INTERACTING MULTICOMPONENT FERMIONS (ELECTRONS WITH SPIN AND CONDUCTING NANOTUBES)
Afonin V.V., Gurevich V.L., Petrov V.Yu.

Received: October 11, 2008

PACS: 71.10.Hf, 71.10.Pm, 73.63.Fg

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We calculate the ground-state wave functions for a system of multicomponent strongly interacting fermions. We show that it is a state with spontaneously broken chiral symmetry that discribes a phase with a finite density of chiral complexes. The number of particles constituting a complex depends on the number of fermion components. For example, in the case of two-component electrons (spin), the condensate is built of four-particle complexes consisting of two ``right'' electrons and two ``left'' holes with the opposite spins.