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

arXiv
Authors: Daniel E. Jones, Brian T. Kirby, Gabriele Riccardi, Cristian Antonelli, Michael Brodsky

Year

2020

Paper ID

21980

Status

Preprint

Abstract Read

~2 min

Abstract Words

75

Citations

N/A

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.

Why This Paper Matters

  • It adds a 2020 reference point for readers tracking recent quantum research.
  • A general quantum channel consisting of a decohering and a filtering element carries one qubit of an entangled photon pair.

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