Dynamical origin of decoherence in classically chaotic systems

F.m Cucchietti, H.m Pastawski and R Jalabert

Physica A: Statistical Mechanics and its Applications, 2000, vol. 283, issue 1, 285-289

Abstract: The decay of the overlap between a wave packet evolved with a Hamiltonian H and the same state evolved with H+Σ serves as a measure of the decoherence time τφ. Recent experimental and analytical evidence on classically chaotic systems suggest that, under certain conditions, τφ depends on H but not on Σ. By solving numerically a Hamiltonian model we find evidence of that property provided that the system shows a Wigner–Dyson spectrum (which defines quantum chaos) and the perturbation exceeds a crytical value defined by the parametric correlations of the spectra.

Keywords: Classical chaos; Decoherence (search for similar items in EconPapers)
Date: 2000
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:283:y:2000:i:1:p:285-289

DOI: 10.1016/S0378-4371(00)00169-2

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