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Type: Artigo de periódico
Title: Limits Of Weak Damping Of A Quantum Harmonic Oscillator
Author: Caldeira A.O.
Cerdeira H.A.
Ramaswamy R.
Abstract: In this Brief Report we analyze the limit of very weak damping of a quantum-mechanical Brownian oscillator. It is shown that the propagator for the reduced density operator of the oscillator can be written as a double path integral of the same form as that obtained in the high-temperature limit. As a direct consequence, we can write a Fokker-Planck equation for the reduced density operator of the weakly damped oscillator (at any temperature) involving only the damping and a generalized diffusion constant in momentum space. © 1989 The American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.40.3438
Date Issue: 1989
Appears in Collections:Unicamp - Artigos e Outros Documentos

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