Journal
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
Volume 44, Issue 44, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1751-8113/44/44/445310
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Funding
- National Natural Science Foundation of China [10775101]
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The original definition of quantum discord of bipartite states was defined over projective measurements; in this paper we discuss some generalizations of it. These generalizations are defined over general measurements, rank-1 general measurements or Neumark extension measurements. We investigate the non-negativity, zero-discord sets of all these quantum discords and some properties of them.
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