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Open Quantum Systems Decoherence Entanglement Theory Quantum Correlations

Spontaneous emission and quantum discord: comparison of Hilbert-Schmidt and trace distance discord

arXiv
Authors: Lech Jakobczyk

Year

2014

Paper ID

48248

Status

Preprint

Abstract Read

~2 min

Abstract Words

85

Citations

N/A

Abstract

Hilbert - Schmidt and trace norm geometric quantum discord are compared with regard to their behavior during local time evolution. We consider the system of independent two - level atoms with time evolution given by the dissipative process of spontaneous emission. It is explicitly shown that the Hilbert - Schmidt norm discord has nonphysical properties with respect to such local evolution and cannot serve as a reasonable measure of quantum correlations and the better choice is to use trace norm discord as such a measure.

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  • This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
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  • Hilbert - Schmidt and trace norm geometric quantum discord are compared with regard to their behavior during local time evolution.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1408.0647 [2] arXiv https://arxiv.org/abs/1408.0647 [3] Publisher https://arxiv.org/abs/1408.0647

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