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- Title
Reveal quantum correlation in complementary bases.
- Authors
Shengjun Wu; Zhihao Ma; Zhihua Chen; Sixia Yu
- Abstract
An essential feature of genuine quantum correlation is the simultaneous existence of correlation in complementary bases. We reveal this feature of quantum correlation by defining measures based on invariance under a basis change. For a bipartite quantum state, the classical correlation is the maximal correlation present in a certain optimum basis, while the quantum correlation is characterized as a series of residual correlations in the mutually unbiased bases. Compared with other approaches to quantify quantum correlation, our approach gives information-theoretical measures that directly reflect the essential feature of quantum correlation.
- Subjects
QUANTUM correlations; OPTICAL quantum computing; BASE pairs; QUANTUM optics; QUANTUM theory; QUANTUM mechanics
- Publication
Scientific Reports, 2014, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/srep04036