Photon-assisted electron transport through a quantum point contact in a microwave field

被引：0
|
作者：
O. A. Tkachenko
V. A. Tkachenko
Z. D. Kvon
机构：
[1] Russian Academy of Sciences,Rzhanov Institute of Semiconductor Physics, Siberian Branch
[2] Novosibirsk State University,undefined
来源：
JETP Letters | 2015年 / 102卷
关键词：
JETP Letter; Open Regime; Microwave Field; Quantum Point Contact; Tunneling Regime;
D O I：
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中图分类号：
学科分类号：
摘要：
It has been shown by the numerical solution of the time-dependent Schrödinger equation that the transmittance of an electron through a smooth one-dimensional barrier in a microwave field can increase by orders of magnitude in the tunneling regime and decrease strongly in the open regime. The leading contribution comes from transitions with absorption or emission of a few photons. The discovered effect can explain a recently observed strong increase in the conductance of a quantum point contact under microwave irradiation.
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页码：378 / 382
页数：4
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