DETERMINATION OF BARRIER TRAVERSAL TIME BY MODULATION OF THE INCIDENT WAVE

被引：7

作者：

HAGMANN, MJ

机构：

[1] Department of Electrical and Computer Engineering, Florida International University, Miami

来源：

APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 02期

关键词：

D O I：

10.1063/1.109314

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The semiclassical expression for barrier traversal time results from a variety of theoretical procedures, but it appears that an opaque barrier is required in each derivation. Following Buttiker and Landauer [IBM J. Res. Dev. 30, 451 (1986)], we use two interfering plane waves as the incident wave and determine the traversal time by attributing differences in the transmitted and incident waves to the ratio of dispersion in the transit time to the modulation period. Calculations are made for rectangular barriers with different sizes. There is essentially agreement with Buttiker and Landauer for opaque barriers which they considered, but the present solution does not diverge for energies near the top of the barrier.

引用

页码：199 / 201

页数：3

共 27 条

[1] QUANTUM TUNNELING, DISSIPATION, AND FLUCTUATIONS [J].