COOPER PAIRING IN A SOLUBLE ONE-DIMENSIONAL MANY-FERMION MODEL

被引：13

作者：

CASAS, M

ESEBBAG, C

EXTREMERA, A

GETINO, JM

DELLANO, M

PLASTINO, A

RUBIO, H

机构：

[1] UNIV AUTONOMA MADRID, DEPT FIS TEOR, E-28049 MADRID, SPAIN

[2] UNIV GRANADA, DEPT FIS MODERNA, E-18071 GRANADA, SPAIN

[3] UNIV OVIEDO, DEPT FIS, E-33007 OVIEDO, SPAIN

[4] N DAKOTA STATE UNIV, DEPT PHYS, FARGO, ND 58105 USA

[5] NATL UNIV LA PLATA, DEPT FIS, RA-1900 LA PLATA, ARGENTINA

来源：

PHYSICAL REVIEW A | 1991年 / 44卷 / 08期

关键词：

D O I：

10.1103/PhysRevA.44.4915

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The dynamical similarities between the three-dimensional (3D) electron fluid "jellium" model and the exactly soluble 1D fermion fluid with attractive delta-function pairwise potentials motivates solving the Cooper-pair problem in this model for all couplings and/or densities. This is accomplished exactly in graphical form. For weak coupling, the essential singularity characteristic of standard 3D low-temperature superconductivity reemerges, and for infinite coupling, BCS theory reproduces the exact ground-state system energy.

引用

页码：4915 / 4922

页数：8

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