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Dynamical origin of decoherence in classically chaotic systems

Author

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  • Cucchietti, F.M
  • Pastawski, H.M
  • Jalabert, R

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.

Suggested Citation

  • Cucchietti, F.M & Pastawski, H.M & Jalabert, R, 2000. "Dynamical origin of decoherence in classically chaotic systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 283(1), pages 285-289.
    • Handle: RePEc:eee:phsmap:v:283:y:2000:i:1:p:285-289
    DOI: 10.1016/S0378-4371(00)00169-2
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    Keywords

    Classical chaos; Decoherence;

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