Fluctuation of Mesoscopic RLC Circuit at Finite Temperature
ZHANG Xiao-Yan1, WANG Ji-Suo1, FAN Hong-Yi2
1School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 2520592Department of Physics, Shanghai Jiao Tong University, Shanghai 200030
Fluctuation of Mesoscopic RLC Circuit at Finite Temperature
ZHANG Xiao-Yan1, WANG Ji-Suo1, FAN Hong-Yi2
1School of Physics Science and Information Engineering, Liaocheng University, Liaocheng 2520592Department of Physics, Shanghai Jiao Tong University, Shanghai 200030
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.
Abstract：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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2008, Vol. 25 
