中国物理B ›› 2001, Vol. 10 ›› Issue (6): 486-489.doi: 10.1088/1009-1963/10/6/304

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QUANTUM FLUCTUATIONS IN MESOSCOPIC RESISTANCE-INDUCTANCE-CAPACITANCE ELECTRIC CIRCUITS AT FINITE TEMPERATURE

范洪义1, 梁先庭2   

  1. (1)Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China; (2)Department of Physics, Huaihua Teachers College, Huaihua 418008, China; Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
  • 收稿日期:2000-10-15 修回日期:2001-02-05 出版日期:2001-06-15 发布日期:2005-06-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 19875046).

QUANTUM FLUCTUATIONS IN MESOSCOPIC RESISTANCE-INDUCTANCE-CAPACITANCE ELECTRIC CIRCUITS AT FINITE TEMPERATURE

Liang Xian-ting (梁先庭)ab, Fan Hong-yi (范洪义)b   

  1. a Department of Physics, Huaihua Teachers College, Huaihua 418008, China; b Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
  • Received:2000-10-15 Revised:2001-02-05 Online:2001-06-15 Published:2005-06-12
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 19875046).

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摘要： By using the charge and current in a quantization resistance-inductance-capacitance (RLC) electric circuit, we construct a pair of canonical variables. Using this pair of variables and the thermal field dynamics, we obtain the fluctuations of charge and current in the RLC electric circuit at finite temperatures. It is shown that the fluctuations increase with increasing temperature and decrease with prolonging of time.

Abstract: By using the charge and current in a quantization resistance-inductance-capacitance (RLC) electric circuit, we construct a pair of canonical variables. Using this pair of variables and the thermal field dynamics, we obtain the fluctuations of charge and current in the RLC electric circuit at finite temperatures. It is shown that the fluctuations increase with increasing temperature and decrease with prolonging of time.

Key words: quantum fluctuation, RLC electric circuit

中图分类号:  (Quantum mechanics)

  • 03.65.-w
05.40.-a (Fluctuation phenomena, random processes, noise, and Brownian motion)