Open AccessQuantum effects of the mesoscopic LC electric circuit in thermal Kerr state
Author(s) -
Ruan Wen,
Lei Min-Sheng,
Yinghua Ji,
Xie An-Dong
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.2291
Subject(s) - mesoscopic physics , physics , condensed matter physics , thermal , capacitor , quantum , electric field , kerr effect , quantum mechanics , voltage , thermodynamics , nonlinear system
Based on the fact that a mesoscopic capacitor can be regarded as a mesoscopic tunnel junction, we quantized the mesoscopic LC circuit by using the rotating -wave approximation.The study shows: Considering the coupled energy of the meso scopic capacitor, the system of the mesoscopic LC circuit will be equivalent to a Kerr system. We also used the thermal field dynamic theory to investigate the thermal Kerr state at a definite temperature and calculated the quantum fluc tuation of both charge and magnetic flux, and discussed the results.