Original Articles |
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Quantum Fluctuation of Mesoscopic Capacitance Coupled Circuit
in a Thermal Vacuum State |
ZHU Ai-Dong1;ZHANG Shou1,2;JIN Zh1;ZHAO Yong-Fang2;JING Xiao-Gong2;QIAN Zheng-Nan2;SU Wen-Hui2 |
1Department of Physics, College of Science and Engineering, Yanbian University, Yanji 133002
2Center for the Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001 |
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Cite this article: |
ZHU Ai-Dong, ZHANG Shou, JIN Zh et al 2003 Chin. Phys. Lett. 20 2231-2234 |
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Abstract The quantum fluctuations of mesoscopic capacitance-coupled circuit in thermal vacuum state are investigated by using the theory of thermal field dynamics on the basis of quantization of the mesoscopic circuit. It is shown that under a definite temperature, the fluctuations of electric charges and currents change with temperature. The higher the temperature, the more quantum noise the coupled circuit exhibits.
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Keywords:
73.23.-b
03.65.Sq
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Published: 01 December 2003
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PACS: |
73.23.-b
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(Electronic transport in mesoscopic systems)
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03.65.Sq
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(Semiclassical theories and applications)
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