Conservative chaotic map as a model of quantum many-body environment

Details Conservative chaotic map as a model of quantum many-body environment Conservative chaotic map as a model of quantum many-body environment

2006-06-08

arxiv.org/abs/quant-ph/0606074v1

Phys. Rev. E 74, 036209 (2006)

Physics

Quantum Physics

8 pages, 4 figures

Scientific paper

10.1103/PhysRevE.74.036209

We study the dynamics of the entanglement between two qubits coupled to a common chaotic environment, described by the quantum kicked rotator model. We show that the kicked rotator, which is a single-particle deterministic dynamical system, can reproduce the effects of a pure dephasing many-body bath. Indeed, in the semiclassical limit the interaction with the kicked rotator can be described as a random phase-kick, so that decoherence is induced in the two-qubit system. We also show that our model can efficiently simulate non-Markovian environments.

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