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Relative ordering of square-norm distance correlations in open quantum systems |
Wu Tao (吴韬)a, Song Xue-Ke (宋学科)b, Ye Liu (叶柳)b |
a School of Physics & Electronics Engineering, Fuyang Teachers College, Fuyang 236037, China; b School of Physics & Material Science, Anhui University, Hefei 230039, China |
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Abstract We investigate the square-norm distance correlation dynamics of the Bell-diagonal states under different local decoherence channels, including phase flip, bit flip, and bit-phase flip channels by employing the geometric discord (GD) and its modified geometric discord (MGD), as the measures of the square-norm distance correlations. Moreover, an explicit comparison between them is made in detail. The results show that there is no distinct dominant relative ordering between them. Furthermore, we obtain that the GD just gradually deceases to zero, while MGD initially has a large freezing interval, and then suddenly changes in evolution. The longer the freezing interval, the less the MGD is. Interestingly, it is shown that the dynamic behaviors of the two geometric discords under the three noisy environments for the Werner-type initial states are the same.
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Received: 15 December 2013
Revised: 03 April 2014
Accepted manuscript online:
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PACS:
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03.65.Ta
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(Foundations of quantum mechanics; measurement theory)
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03.65.Yz
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(Decoherence; open systems; quantum statistical methods)
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03.67.Lx
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(Quantum computation architectures and implementations)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 11074002 and 61275119) and the Natural Science Research Project of Education Department of Anhui Province, China (Grant No. KJ2013A205). |
Corresponding Authors:
Wu Tao
E-mail: wutaofuyang@126.com
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About author: 03.65.Ta; 03.65.Yz; 03.67.Lx |
Cite this article:
Wu Tao (吴韬), Song Xue-Ke (宋学科), Ye Liu (叶柳) Relative ordering of square-norm distance correlations in open quantum systems 2014 Chin. Phys. B 23 100302
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| [33] | Li B, Wang Z X and Fei S M 2011 Phys. Rev. A 83 022321
|
|
| [1] | Orimo A, Masuda K, Honda S, Benten H, Ito S, Ohkita H and Tsuji H 2010 Appl. Phys. Lett. 96 43305
|
|
| [34] | Maziero J, Céleri L C, Serra R M and Vedral V 2009 Phys. Rev. A 80 044102
|
|
| [2] | Yang B, Tsai M, Cheng W, Chen J, Hsu S L and Chou W 2013 J. Phys. Chem. C 117 14472
|
|
| [35] | Xu J S, Xu X Y, Li C F, Zhang C J, Zou X B and Guo G C 2010 Nat. Commun. 1 7
|
|
| [3] | Watts B, Belcher W J, Thomsen L, Ade H and Dastoor P C 2009 Macromolecules 42 8392
|
|
| [36] | Werlang T, Souza S, Fanchini F F and VillasBoas C J 2009 Phys. Rev. A 80 024103
|
|
| [4] | Xu Z, Chen L M, Yang G W, Huang C H, Hou J H, Wu Y, Li G, Hsu C S and Yang Y 2009 Adv. Funct. Mater. 19 1227
|
|
| [37] | Hao X, Ma C L and Sha J Q 2010 J. Phys. A: Math. Theor. 43 425302
|
|
| [5] | Oklobia O and Shafai T S 2013 Sol. Energy Mater. Sol. Cells 117 1
|
|
| [6] | Lee J K, Ma W L, Brabec C J, Yuen J, Moon J S, Kim J Y, Lee K, Bazan G C and Heeger A J 2008 J. Am. Chem. Soc. 130 3619
|
|
| [38] | Fanchini F F, Werlang T, Brasil C A, Arruda L G E and Caldeira A O 2010 Phys. Rev. A 81 052107
|
|
| [7] | Yu X, Hu Z Y, Huang Z H, Yu X M, Zhang J J, Zhao G S and Zhao Y 2013 Chin. Phys. B 22 118801
|
|
| [39] | Salles A, de Melo F, Almeida M P, Hor-Meyll M, Walborn S P, Souto Ribeiro P H and Davidovich L 2008 Phys. Rev. A 78 022322
|
|
| [8] | ReeseM O, WhiteM S, Rumbles G, Ginley D S and Shaheen S E 2008 Appl. Phys. Lett. 92 53307
|
|
| [40] | Lindblad G 1991 Quantum Entropy and Quantum Measurement, in Quantum Aspects of Optical Communications, Leture Notes in Physics (Berlin: Springer) Vol. 378, pp. 71-80
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