Quantum chaos in the conductance of a mesoscopic system. Theory and simulation approach

被引：2
|
作者：
Mina, AN [1 ]
Phillips, AH
Shaheen, FM
Abdel-Gawad, NS
机构：
[1] Cairo Univ, Beni Suef Branch, Dept Phys, Fac Sci, Beni Suef, Egypt
[2] Ain Shams Univ, Fac Engn, Eng Phys & Math Dept, Cairo, Egypt
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2000年 / 341卷
关键词：
D O I：
10.1016/S0921-4534(00)00490-1
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Quantum conductance characteristics of a mesoscopic superconducting quantum point contact are studied under the effect of an electric field. The conductance is computed by using the Landauer-Buttiker formula. The energy of the tunneled electrons is calculated by using a Monte-Carlo technique. The obtained results show the following features: (1) The decrease of the conductance as the temperature increase. (2) The conductance exhibits a peak as a function of the bias voltage. This peak changes sign when the direction of the electric field changes. The results are explained according to the quantum chaos in the conductance.
引用
收藏
页码：301 / 302
页数：2
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