Recovering quantum information through partial access to the environment

Details Recovering quantum information through partial access to the environment Recovering quantum information through partial access to the environment

2011-01-19

arxiv.org/abs/1101.3768v1

New J. Phys. 13 (2011) 103031

Physics

Quantum Physics

Scientific paper

10.1088/1367-2630/13/10/103031

We investigate the possibility of correcting errors occurring on a multipartite system through a feedback mechanism that acquires information from partial access to the environment. A partial control scheme of this kind might be useful when dealing with correlated errors. In fact, in such a case, it could be enough to gather local information to decide what kind of global recovery to perform. Then, we apply this scheme to the depolarizing and correlated errors, and quantify its performance by means of the entanglement fidelity.

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