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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 |
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| Cite this article: |
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ZHANG Xiao-Yan, WANG Ji-Suo, FAN Hong-Yi 2008 Chin. Phys. Lett. 25 3126-3128 |
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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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| Keywords:
03.65.-w
42.50.Lc
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Received: 29 May 2008
Published: 29 August 2008
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