Quantum chaotic system as a model of decohering environment
arXiv:0806.4517 · doi:10.1209/0295-5075/85/50006
Abstract
As a model of decohering environment, we show that quantum chaotic system behave equivalently as many-body system. An approximate formula for the time evolution of the reduced density matrix of a system interacting with a quantum chaotic environment is derived. This theoretical formulation is substantiated by the numerical study of decoherence of two qubits interacting with a quantum chaotic environment modeled by a chaotic kicked top. Like the many-body model of environment, the quantum chaotic system is efficient decoherer, and it can generate entanglement between the two qubits which have no direct interaction.
5 pages, 3 figures. Published version!
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Cited by in corpus (6)
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