Universal Fermi distribution of semiclassical nonequilibrium Fermi states

被引：37

作者：

Bettelheim, Eldad ^{[1
]}

Wiegmann, Paul B. ^{[2
]}

机构：

[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

[2] Univ Chicago, James Franck Inst, Chicago, IL 60637 USA

来源：

PHYSICAL REVIEW B | 2011年 / 84卷 / 08期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevB.84.085102

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

When a classical device suddenly perturbs a degenerate Fermi gas, a semiclassical nonequilibrium Fermi state arises. Similar states appear when a charge is transferred into a Fermi gas through a localized contact. Semiclassical Fermi states are characterized by a Fermi energy or Fermi momentum that slowly depends on space and/or time. We show that the Fermi distribution of a semiclassical Fermi state has a universal nature. It is described by Airy functions regardless of the details of the perturbation.

引用

页数：5

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