Artículos de revistas
Quantum dissipation and decoherence via interaction with low-dimensional chaos: A Feynman-Vernon approach
Registro en:
Physical Review A. American Physical Soc, v. 74, n. 1, 2006.
1050-2947
WOS:000239425900017
10.1103/PhysRevA.74.012105
Autor
Bonanca, MVS
de Aguiar, MAM
Institución
Resumen
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. 74 1