QUANTUM FLUCTUATIONS IN MESOSCOPIC RESISTANCErn INDUCTANCE-CAPACITANCE ELECTRIC CIRCUITSrn AT FINITE TEMPERATURE

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.