Quantum information reclaiming after amplitude damping

Details Quantum information reclaiming after amplitude damping Quantum information reclaiming after amplitude damping

2010-04-04

arxiv.org/abs/1004.0497v1

J. Phys. A: Math. Theor. 44 045304 (2011)

Physics

Quantum Physics

Scientific paper

10.1088/1751-8113/44/4/045304

We investigate the quantum information reclaim from the environment after amplitude damping has occurred. In particular we address the question of optimal measurement on the environment to perform the best possible correction on two and three dimensional quantum systems. Depending on the dimension we show that the entanglement fidelity (the measure quantifying the correction performance) is or is not the same for all possible measurements and uncover the optimal measurement leading to the maximum entanglement fidelity.

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