Fermion Condensation and Non Fermi Liquid Behavior in a Model with Long Range Forces

Дата и время публикации : 1996-03-08T13:25:01Z

Авторы публикации и институты :
J. Dukelsky
V. A. Khodel
P. Schuck
V. R. Shaginyan

Ссылка на журнал-издание: Ссылка на журнал-издание не найдена
Коментарии к cтатье: 22 LaTeX pages, 6 figures can be obtained from emduke@roca.csic.es
Первичная категория: cond-mat

Все категории : cond-mat

Краткий обзор статьи: The phenomenon of the so called Fermion condensation, a phase transition analogous to Bose condensation but for Fermions, postulated in the past to occur in systems with strong momentum dependent forces, is reanalysed in a model with infinite range interactions. The strongly non Fermi Liquid behavior of this system is demonstrated analytically at $T=0$ and at $Tneq 0$ in the superconducting and normal phases. The validity of the quasiparticle picture is investigated and seems to hold true for temperatures less than the characteristic temperature $T_f$ of the Fermion condensation.

Category: Physics