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Open Quantum Systems Decoherence Entanglement Theory Quantum Correlations

Comment on "How to observe and quantify quantum-discord states via correlations"

arXiv

Authors: Parveen Kumar, Kyrylo Snizhko

Year

2020

Paper ID

21991

Status

Preprint

Abstract Read

~2 min

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Abstract

The protocol proposed in the commented-upon article can certify zero discord; however, it fails to quantify non-zero discord for some states. Further, the protocol is less efficient than calculating discord via performing full quantum state tomography.

Why This Paper Matters

This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
It adds a 2020 reference point for readers tracking recent quantum research.
The protocol proposed in the commented-upon article can certify zero discord; however, it fails to quantify non-zero discord for some states.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2007.12345 [2] arXiv https://arxiv.org/abs/2007.12345 [3] Publisher https://arxiv.org/abs/2007.12345

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