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Comments on “Distillability sudden death in qutrit–qutrit systems under thermal reservoirs” |
| Mazhar Ali |
| Department of Electrical Engineering, COMSATS Institute of Information Technology, 22060 Abbottabad, Pakistan |
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Abstract In a recent paper (2012 Chin. Phys. B 21 084205), the authors studied the problem of distillability sudden death. We find that their equation of motion is incorrect and consequently the rest of the paper is wrong. Even apart from starting with a wrong equation of motion, their description of the phenomenon of distillability sudden death is totally misleading and needs to be rectified. To this aim, we show that certain initially prepared free-entangled states become bound-entangled in a finite time under thermal reservoirs. Moreover, in contrast with zero-temperature reservoirs, simple local unitary transformations cannot completely avoid distillability sudden death.
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Received: 29 December 2013
Revised: 17 February 2014
Accepted manuscript online:
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PACS:
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03.65.Yz
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(Decoherence; open systems; quantum statistical methods)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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Corresponding Authors:
Mazhar Ali
E-mail: mazharaliawan@yahoo.com
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Cite this article:
Mazhar Ali Comments on “Distillability sudden death in qutrit–qutrit systems under thermal reservoirs” 2014 Chin. Phys. B 23 090306
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| [1] |
Song W, Chen L and Zhu S L 2009 Phys. Rev. A 80 012331
|
| [2] |
Ali M 2010 Phys. Rev. A 81 042303
|
| [3] |
Ali M 2010 J. Phys. B: At. Mol. Phys. 43 045504
|
| [4] |
Khan S and Khan M K 2011 J. Mod. Opt. 58 918
|
| [5] |
Huang J, Fang M F, Yang B Y and Liu X 2012 Chin. Phys. B 21 084205
|
| [6] |
Scully M O and Zubairy M S 1997 Quantum Optics (Cambridge: Cambridge University Press)
|
| [7] |
Chen K and Wu L A 2003 Quantum. Inf. Comput. 3 193
|
| [8] |
Rudolph O 2005 Quantum. Inf. Process. 4 219
|
| [9] |
Horodecki P, Horodecki M and Horodecki R 1999 Phys. Rev. Lett. 82 1056
|
| [10] |
Vidal G and Werner R F 2002 Phys. Rev. A 65 032314
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