Noise-induced energy excitation by a general environment
arXiv:0708.1013 · doi:10.1016/j.physleta.2007.08.019
Abstract
We analyze the effects that general environments, namely ohmic and non-ohmic, at zero and high temperature induce over a quantum Brownian particle. We state that the evolution of the system can be summarized in terms of two main environmental induced physical phenomena: decoherence and energy activation. In this article we show that the latter is a post-decoherence phenomenon. As the energy is an observable, the excitation process is a direct indication of the system-environment entanglement particularly useful at zero temperature.
14 pages; 7 figures. Version to appear in Phys Lett. A