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Quantum Information Processing

Entanglement sudden death in the presence of quantum decoherence in non-inertial frames: beyond the single-mode approximation

M. H. Aminjavaheri, Sayed Ali Akbar Ghorashi, M. Bagheri Harouni

Published Mar 18, 2014• 3 citations
Publisher
DOI
10.1007/s11128-014-0742-x

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The effect of decoherence on a qubit-qutrit system under the influence of global and multilocal decoherence in non-inertial frames is investigated. It is shown that the entanglement sudden death (ESD) can be avoided in non-inertial frames in the presence of dephasing and bit-trit phase flip channels for entire range of decoherence. However, ESD behaviour is seen for higher level of decoherence in case of phase flip and bit-trit flip channels. Irrespective of the entanglement degradation caused by the Unruh effect, no ESD occurs for the dephasing environment. Furthermore, flipping channels have approximately similar effect on the entanglement of the hybrid system.