Normal ordering solution to quantum dissipation and its induced decoherence

Abstract

We implement the normal ordering technique to study the quantum dissipation of a single mode harmonic oscillator system. The dynamic evolution of the system is investigated for a reasonable initial state by solving the Schrödinger equation directly through the normal ordering technique. The decoherence process of the system for the cases $T=0K$ and $T\ne 0K$ is investigated as an application.

13 pages, revtex, no figures