Circulant states with vanishing quantum discord
classification
🪐 quant-ph
keywords
statescirculantdiscordquantumvanishinganalysisanalyzebell
read the original abstract
We analyze a class of 2-qudit circulant states. They define generalization of well known 2-qubit X-states. We formula the necessary and sufficient criteria for vanishing quantum discord. We illustrate our analysis by an important subclass of circulant states -- so called Bell diagonal states.
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