Transient currents in nanoscopic circuits

被引：0
|
作者：
Godoy, S [1 ]
Okamura, Y [1 ]
机构：
[1] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Mexico City 09340, DF, Mexico
来源：
STATISTICAL PHYSICS AND BEYOND | 2005年 / 757卷
关键词：
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Quantum transient currents are obtained after the sudden release of a particle initially confined in a nanoscopic circuit. We extend the 1D theory of diffraction in time to particles released from nanoscopic circuits with cylindrical cross-sections. For a circular cross-section, the particle's free time evolution is described by cylindrical waves with their amplitudes showing diffraction in time. For large observation distances, the time-dependent probability density current looks similar to the Fraunhofer diffraction pattern by a circular aperture. A temporal quantum Airy disk can be defined.
引用
收藏
页码：56 / 65
页数：10
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