Digitale Medien
Springer
Journal of experimental and theoretical physics
87 (1998), S. 1129-1135
ISSN:
1090-6509
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Physik
Notizen:
Abstract We examine the structure of the ground state of a homogeneous Fermi liquid beyond the instability point of the Fermi-like quasiparticle momentum distribution in the effective-functional method with a strong repulsive effective interaction. A numerical study of the initial stage of rearrangement of the ground state, based on a simple effective functional, showed that there exists a temperature T 0, above which the behavior of the system is the same as in the theory of fermion condensation, and for T〈T 0 the scenario of rearrangement of the ground state is different. At low temperatures an intermediate structure arises, with a multiply connected quasiparticle momentum distribution. The transition of this structure with growth of the coupling constant to a state with a fermion condensate is discussed.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1134/1.558604
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