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Title: Quantum chaotic system as a model of decohering environment
Authors: Bandyopadhyay, J.N. 
Issue Date: 2009
Source: Bandyopadhyay, J.N. (2009). Quantum chaotic system as a model of decohering environment. EPL 85 (5) : -. ScholarBank@NUS Repository.
Abstract: As a model of decohering environment, we show that a quantum chaotic system behaves equivalently as a 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 the 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 an efficient decoherer, and it can generate entanglement between the two qubits which have no direct interaction. Copyright © 2009 EPLA.
Source Title: EPL
ISSN: 02955075
DOI: 85/50006
Appears in Collections:Staff Publications

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