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Avoiding Entanglement Sudden Death Using Quantum Measurement Reversal on Single-qubit

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Abstract

Decoherence on two-qubit systems degrades entanglement, and sometimes even causes entanglement sudden death (ESD). We show quantum measurement reversal on only one subsystem can avoid ESD, providing methods for practical entanglement distribution under decoherence.

© 2015 Optical Society of America

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