Quantum control of two-qubit entanglement dissipation

Solomon, Allan I. and Schirmer, Sophie G. (2011). Quantum control of two-qubit entanglement dissipation. Journal of Russian Laser Research, 32(5) pp. 502–510.

DOI: https://doi.org/10.1007/s10946-011-9240-0

Abstract

We investigate quantum control of the dissipation of entanglement under environmental decoherence. We show by means of a simple two-qubit model that standard control methods – coherent or open-loop control – will not in general prevent entanglement loss induced by a Markovian environment. However, we propose a control method utilizing a Wiseman–Milburn feedback/measurement control scheme which will effectively negate environmental entanglement dissipation.

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