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Entanglement Theory Quantum Correlations

Comparison of quantum discord and relative entropy in some bipartite quantum systems

arXiv
Authors: M. Mahdian, M. B. Arjmandi

Year

2013

Paper ID

33361

Status

Preprint

Abstract Read

~2 min

Abstract Words

96

Citations

N/A

Abstract

The study of quantum correlations in High-dimensional bipartite systems is crucial for the development of quantum computing. We propose relative entropy as a distance measure of correlations may be measured by means of the distance from the quantum state to the closest classical-classical state. In particular, We establish relations between relative entropy and quantum discord quantifiers obtained by means of orthogonal projective measurements. We show that for symmetrical X-states density matrices the quantum discord is equal to relative entropy. At the end of paper, various examples of X-states such as two-qubit and qubit-qutrit have been demonstrated .

Why This Paper Matters

  • This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
  • It adds a 2013 reference point for readers tracking recent quantum research.
  • The study of quantum correlations in High-dimensional bipartite systems is crucial for the development of quantum computing.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1308.0901 [2] arXiv https://arxiv.org/abs/1308.0901 [3] Publisher https://arxiv.org/abs/1308.0901

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