TUNNELING THROUGH TIME-MODULATED BARRIERS - IS THERE A CROSSOVER FREQUENCY

被引：20
|
作者：
DERAEDT, H
GARCIA, N
HUYGHEBAERT, J
机构：
[1] UNIV AUTONOMA MADRID,DEPT MAT CONDENSADA,E-28049 MADRID,SPAIN
[2] CATHOLIC UNIV LEUVEN,INST THEORET PHYS,B-3030 HEVERLEE,BELGIUM
来源：
SOLID STATE COMMUNICATIONS | 1990年 / 76卷 / 06期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1016/0038-1098(90)90640-W
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Results are reported of extensive numerical simulations of the tunneling of a particle through a time-modulated barrier. It is demonstrated that the process of absorption and emission of modulation quanta depends sensitively on the modulation frequency and the modulation strength. The transmission coefficient develops a plateau at a crossover frequency which, for small to moderate modulation strength, corresponds to the frequency at which the energy of the first-order sideband becomes equal to the first resonance energy above the top of the barrier. © 1990.
引用
收藏
页码：847 / 850
页数：4
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