Damping in a Squeezed Bath and Its Time Evolution through the Complete Class of Gaussian Quasi-Distributions
M. R. Bazrafkan, Seyed Mahmoud Ashrafi, Fahimeh Naghdi
By virtue of the thermo-entangled states representation of the density operator and using the dissipative interaction picture, we solve the master equation of a driven damped harmonic oscillator in a squeezed bath. We show that the essential part of the dynamics can be expressed by the convolution of the initial Wigner function with a special kind of normalized Gaussian in the phase space and relate the dynamics with the change of Gaussian ordering of the density operator.
Chinese Physics Letters•Jul 1, 2014•1 citation