On the ground state energy of a gas of interacting polarons in a magnetic field

被引：6

作者：

Putteneers, K ^{[1
]}

Brosens, F ^{[1
]}

Klimin, SN ^{[1
]}

Devreese, JT ^{[1
]}

机构：

[1] Univ Antwerp, Dept Fys, B-2610 Antwerp, Belgium

来源：

SOLID STATE COMMUNICATIONS | 2005年 / 135卷 / 1-2期

关键词：

polarons; magnetic field; structure factor; many-body theory;

D O I：

10.1016/j.ssc.2005.03.050

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The ground-state energy of a three-dimensional polaron gas in a magnetic field is investigated. An upper bound for the groundstate energy is derived within a variational approach which is based on a many-body generalization of Lee-Low-Pines transformation. The basic contributing ingredients found are the ground-state energy and the static structure factor of the homogeneous electron gas in a magnetic field. Both these quantities are derived in the Hartree-Fock approximation. The resulting ground-state energy of the polaron gas is analyzed as a function of the electron density and of the magnetic field strength. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：108 / 113

页数：6

共 50 条

[1] GROUND-STATE ENERGY OF A GAS OF INTERACTING POLARONS
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