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Type: Artigo de periódico
Title: Quantum dissipation and decoherence via interaction with low-dimensional chaos: A Feynman-Vernon approach
Author: Bonanca, MVS
de Aguiar, MAM
Abstract: We study the effects of dissipation and decoherence induced on a harmonic oscillator by the coupling to a chaotic system with two degrees of freedom. Using the Feynman-Vernon approach and treating the chaotic system semiclassically, we show that the effects of the low-dimensional chaotic environment are in many ways similar to those produced by thermal baths. The classical correlation and response functions play important roles in both classical and quantum formulations. Our results are qualitatively similar to the high-temperature regime of the Caldeira-Leggett model. (c) 2006 American Institute of Physics.
Country: EUA
Editor: American Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevA.74.012105
Date Issue: 2006
Appears in Collections:Unicamp - Artigos e Outros Documentos

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