Equation of motion method for Full Counting Statistics: Steady state superradiance
Quantum Physics
2012-09-18 v2
Abstract
For the multi-mode Dicke model in a transport setting that exhibits collective boson transmissions, we construct the equation of motion for the cumulant generating function. Approximating the exact system of equations at the level of cumulant generating function and system operators at lowest order, allows us to recover master equation results of the Full Counting Statistics for certain parameter regimes at very low cost of computation. The thermodynamic limit, that is not accessible with the master equation approach, can be derived analytically for different approximations.
Cite
@article{arxiv.1206.4149,
title = {Equation of motion method for Full Counting Statistics: Steady state superradiance},
author = {Malte Vogl and Gernot Schaller and Eckehard Schöll and Tobias Brandes},
journal= {arXiv preprint arXiv:1206.4149},
year = {2012}
}
Comments
7 pages, 3 figures, revised version, accepted by PRA