Quantum effects of the mesoscopic LC electric circuit in thermal Kerr state

被引：2

作者：

Ruan, W ^{[1
]}

Lei, MS

Ji, YH

Xie, AD

机构：

[1] Jiangxi Normal Univ, Inst Phys & Commun Engn, Nanchang 330027, Peoples R China

[2] Jinggangshan Normal Coll, Dept Phys, Jian 343009, Peoples R China

来源：

ACTA PHYSICA SINICA | 2005年 / 54卷 / 05期

关键词：

mesoscopic LC electric circuit; thermal Kerr state; quantum fluctuation;

D O I：

10.7498/aps.54.2291

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Based on the fact that a mesoscopic capacitor can be regarded as a mesoscopic tunnel junction, we quantized the mesoscopic LC circuit by using the rotating-wave approximation. The study shows: Considering the coupled energy of the mesoscopic capacitor, the system of the mesoscopic LC circuit will be equivalent to a Kerr system. We also used the thermal field dynamic theory to investigate the thermal Kerr state at a definite temperature and calculated the quantum fluctuation of both charge and magnetic flux, and discussed the results.

引用

页码：2291 / 2295

页数：5