APPLICATION OF GENERALIZED FEYNMAN–HELLMANN THEOREM IN QUANTIZATION OF LC CIRCUIT IN THERMO BATH

Abstract

For the quantized LC electric circuit, when taking the Joule thermal effect into account, we think that physical observables should be evaluated in the context of ensemble average. We then use the generalized Feynman–Hellmann theorem for ensemble average to calculate them, which seems convenient. Fluctuation of observables in various LC electric circuits in the presence of thermo bath growing with temperature is exhibited.