| Comments on ＂Distillability sudden death in qutrit-qutrit systems under thermal reservoirs＂ |
| |
| 作者姓名： | Mazhar Ali |
| |
| 作者单位： | Department of Electrical Engineering, COMSATS Institute of Information Technology, 22060 Abbottabad, Pakistan |
| |
| 摘 要： | 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.
|
| 关 键 词： | distillability thermal reservoirs bound entanglement |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
