ANDERSON MODEL OUT OF EQUILIBRIUM - TIME-DEPENDENT PERTURBATIONS

被引：87
作者：
HETTLER, MH
SCHOELLER, H
机构：
[1] UNIV KARLSRUHE,INST THEORET FESTKORPERPHYS,D-76128 KARLSRUHE,GERMANY
[2] SIMON FRASER UNIV,DEPT PHYS,BURNABY,BC V5A 1S6,CANADA
来源：
PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 24期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevLett.74.4907
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The influence of high-frequency fields on transport through a quantum dot is studied in the low-temperature regime. We generalize the noncrossing approximation for the infinite- U Anderson model to the time-dependent case. The dc spectral density shows asymmetric Kondo side peaks due to photon-assisted resonant tunneling. As a consequence, we predict an electron-photon pump at zero bias which is purely based on the Kondo effect. The differential conductance shows resonant side peaks with a characteristic line shape. All the effects are important for a signature of the Kondo effect in quantum dots. © 1995 The American Physical Society.
引用
收藏
页码：4907 / 4910
页数：4
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