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Quantum fluctuations of mesoscopic damped double resonance RLC circuit with mutual capacitance-inductance coupling in thermal excitation state

Chinese Physics, ISSN: 1009-1963, Vol: 16, Issue: 8, Page: 2462-2470
2007
  • 18
    Citations
  • 0
    Usage
  • 2
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    18
    • Citation Indexes
      18
  • Captures
    2

Article Description

Based on the scheme of damped harmonic oscillator quantization and thermo-field dynamics (TFD), the quantization of mesoscopic damped double resonance RLC circuit with mutual capacitance-inductance coupling is proposed. The quantum fluctuations of charge and current of each loop in a squeezed vacuum state are studied in the thermal excitation case. It is shown that the fluctuations not only depend on circuit inherent parameters, but also rely on excitation quantum number and squeezing parameter. Moreover, due to the finite environmental temperature and damped resistance, the fluctuations increase with the temperature rising, and decay with time. © 2007 Chin. Phys. Soc. and IOP Publishing Ltd.

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