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- W2000256072 abstract "In this article, we investigate how quantum correlations behave for the so-called Werner and pseudo-pure families of states. The latter refers to states formed by mixing any pure state with the totally mixed state. We derive closed expressions for the Quantum Discord (QD) and the Relative Entropy of Quantumness (REQ) for these families of states. For Werner states, the classical correlations are seen to vanish in high dimensions while the amount of quantum correlations remain bounded and become independent of whether or not the the state is entangled. For pseudo-pure states, nearly the opposite effect is observed with both the quantum and classical correlations growing without bound as the dimension increases and only as the system becomes more entangled. Finally, we verify that pseudo-pure states satisfy the conjecture of [textit{Phys. Rev. A} textbf{84}, 052110 (2011)] which says that the Geometric Measure of Discord (GD) always upper bounds the squared Negativity of the state." @default.
- W2000256072 created "2016-06-24" @default.
- W2000256072 creator A5018943027 @default.
- W2000256072 date "2012-09-12" @default.
- W2000256072 modified "2023-10-16" @default.
- W2000256072 title "Quantum correlations in high-dimensional states of high symmetry" @default.
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- W2000256072 doi "https://doi.org/10.1103/physreva.86.032110" @default.
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