Fluctuation of mesoscopic RLC circuit at finite temperature

被引：6
|
作者：
Zhang Xiao-Yan [1 ]
Wang Ji-Suo [1 ]
Fan Hong-Yi [2 ]
机构：
[1] Liaocheng Univ, Sch Phys Sci & Informat Engn, Liaocheng 252059, Peoples R China
[2] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2008年 / 25卷 / 09期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1088/0256-307X/25/9/009
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We consider the fluctuation of mesoscopic RLC circuit at finite temperature since a resistance always produces Joule heat when the circuit is working. By virtue of the thermo field dynamics and the coherent thermo state representation we show that the quantum mechanical zero-point fluctuations of both charge and current increase with the rising temperature and the resistance value.
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页码：3126 / 3128
页数：3
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