1212.5916 (A. Crépieux)

Series expansion of the quantum admittance in mesoscopic systems    [PDF]

A. Crépieux

The quantum admittance of an interacting/coupled mesoscopic system and its series expansion are obtained with the help of a refermionization procedure. It allows us to characterize the dependency of this quantity according to the applied dc voltage, temperature and frequency without restriction on the relative values of these variables. Explicit expressions of the admittance are derived in both small and large interaction/coupling limits, given a clear indication about the inductive or capacitive behavior of the mesoscopic system, first in the low temperature regime and second in the low frequency regime, allowing to identify the conditions to have a positive dephasing.

View original: http://arxiv.org/abs/1212.5916