Environment-independent decoherence rate in classically chaotic systems

Details Environment-independent decoherence rate in classically chaotic systems Environment-independent decoherence rate in classically chaotic systems

2000-10-05

arxiv.org/abs/cond-mat/0010094v2

Physical Review Letters 86 (2001) p. 2490-2493

Physics

Condensed Matter

Disordered Systems and Neural Networks

No figures. Typos corrected and minor modifications to the text and references. Published version

Scientific paper

10.1103/PhysRevLett.86.2490

We study the decoherence of a one-particle system, whose classical correpondent is chaotic, when it evolves coupled to a weak quenched environment. This is done by analytical evaluation of the Loschmidt Echo, (i.e. the revival of a localized density excitation upon reversal of its time evolution), in presence of the perturbation. We predict an exponential decay for the Loschmidt Echo with a (decoherence) rate which is asymptotically given by the mean Lyapunov exponent of the classical system, and therefore independent of the perturbation strength, within a given range of strengths. Our results are consistent with recent experiments of Polarization Echoes in nuclear magnetic resonance and preliminary numerical simulations.

Affiliated with

Also associated with

No associations

Rating

Environment-independent decoherence rate in classically chaotic systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Environment-independent decoherence rate in classically chaotic systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Environment-independent decoherence rate in classically chaotic systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-300163