New Approach for Solving the Lindblad Equation of the Density Operator for a Harmonic Oscillator Interacting with an Electromagnetic Field

摘要

By virtue of the thermo entangled state (TES) representation whose one mode is a fictitious one accompanying the system mode, this paper presents a novel approach for deriving density operator for a harmonic oscillator interacting with an electromagnetic field. The Fano factor and the Wigner function in evolution process have been derived.