Noise induced energy excitation by a general environment

FERNANDO C. LOMBARDO AND PAULA I. VILLAR

PHYSICS LETTERS A

Elsevier Science

Lugar: North-Holland, Amsterdam, Holanda; Año: 2007 vol. 371 p. 190 - 200

0375-9601

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