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Entanglement Theory Quantum Correlations
Quantum Foundations
Symmetry aspects of quantum discord
arXiv
Authors: J. Maziero, L. C. Celeri, R. M. Serra
Year
2010
Paper ID
8956
Status
Preprint
Abstract Read
~2 min
Abstract Words
80
Citations
N/A
Abstract
Quantum discord (QD) reveals the nonclassical nature of correlations in bipartite quantum states, going beyond the entanglement-separability paradigm. In this article we discuss the suitability of QD in what concern its possible asymmetry with relation to the bipartition we choose to compute it. We obtain an analytical formula for a symmetrized version of QD (SQD) in Bell-diagonal states. We observe that if correlation is regarded as a shared property, then the SQD could be a convenient quantifier for asymmetric states.
Why This Paper Matters
- This paper contributes to the Quantum Foundations research area in the Quantum Articles archive.
- It adds a 2010 reference point for readers tracking recent quantum research.
- Quantum discord (QD) reveals the nonclassical nature of correlations in bipartite quantum states, going beyond the entanglement-separability paradigm.
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