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1. Exploring classical correlations in noise to recover quantum information using local filtering

Author

Daniel E Jones, Brian T Kirby, Gabriele Riccardi, Cristian Antonelli, and Michael Brodsky

Subjects
quantum entanglement, quantum communication, quantum information, quantum channels, Science, Physics, QC1-999
Abstract

A general quantum channel consisting of a decohering and a filtering element carries one qubit of an entangled photon pair. As we apply a local filter to the other qubit, some mutual quantum information between the two qubits is restored depending on the properties of the noise mixed into the signal. We demonstrate a drastic difference between channels with bit-flip and phase-flip noise and further suggest a scheme for maximal recovery of the quantum information.

Published
2020
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