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

页码：56 / 65

页数：10

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