Analytic expressions of discord and geometric discord in Werner derivatives

Analytic expressions of discord and geometric discord in Werner derivatives Werner derivatives are a special kind of mixing states transformed from Werner states by unitary operations (Hiroshima and Ishizaka in Phys Rev A 62:044302, 2000). In this paper, the inherent quantum correlations in Werner derivatives are quantified by two different quantifiers, i.e., quantum discord and geometric discord. Different analytic expressions of the two discords in Werner derivatives are derived out. Some distinct features of the discords and their underlying physics are exposed via discussions and analyses. Moreover, it is found that the amount of quantum correlations quantified by either quantifier in each derivative cannot exceed that in the original Werner state. In other words, no unitary operation can increase quantum correlation in a Werner state as far as the two quantifiers are concerned. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Quantum Information Processing Springer Journals

Analytic expressions of discord and geometric discord in Werner derivatives

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Publisher
Springer US
Copyright
Copyright © 2014 by Springer Science+Business Media New York
Subject
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
ISSN
1570-0755
eISSN
1573-1332
D.O.I.
10.1007/s11128-014-0731-0
Publisher site
See Article on Publisher Site

References

  • Can quantum-mechanical description of physical reality be considered complete?
    Einstein, A; Podolsky, B; Rosen, N
  • Perfect teleportation of arbitrary n-qudit states using different quantum channels
    Zhang, ZJ; Liu, YM
  • Geometric measure of quantum discord
    Luo, SL; Fu, SS
  • Genuine quantum and classical correlations in multipartite systems
    Giorgi, GL; Bellomo, B; Galve, F; Zambrini, R
  • Geometric measure of quantum discord for a two-parameter class of states in a qubit-qutrit system under various dissipative channels
    Wei, HR; Ren, BC; Deng, FG

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