Unifying Treatment of Discord via Relative Entropy
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🪐 quant-ph
math-phmath.MP
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entropyrelativezero-discordbeenconditionderiveddiscorddiscussed
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A new form of zero-discord state via Petz's monotonicity condition on relative entropy with equality has been derived systematically. A generalization of symmetric zero-discord states is presented and the related physical implications are discussed.
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