Distillability Sudden Birth of Entanglement for Qutrit-Qutrit Systems  

作　　者：Mazhar Alit 黄江 

机构地区：[1]Department of Electrical Engineering, COMSATS Institute of Information Technology, Abbottabad 22060, Pakistan [2]Department of Physical and Photoelectric Science, Guangdong Ocean University, Zhanjiang 524088

出　　处：《Chinese Physics Letters》2014年第11期5-8,共4页中国物理快报（英文版）

摘　　要：We report the sudden appearance of distillability between two statistically independent reservoirs modelled as qutrit-qutrit systems. This feature of bipartite quantum systems is different from the previously observed phenomenon of entanglement sudden birth. It is found that the states of reservoirs first become bound entangled, thus exhibiting entanglement sudden birth, consequently followed by the sudden birth of distillability, and it is shown that whenever distillability is lost abruptly from principal system, it also necessarily appears abruptly among reservoirs＇ degrees of freedom. This surprising observation reflects yet another peculiarity of dynamical aspects of quantum entanglement.We report the sudden appearance of distillability between two statistically independent reservoirs modelled as qutrit-qutrit systems. This feature of bipartite quantum systems is different from the previously observed phenomenon of entanglement sudden birth. It is found that the states of reservoirs first become bound entangled, thus exhibiting entanglement sudden birth, consequently followed by the sudden birth of distillability, and it is shown that whenever distillability is lost abruptly from principal system, it also necessarily appears abruptly among reservoirs＇ degrees of freedom. This surprising observation reflects yet another peculiarity of dynamical aspects of quantum entanglement.

分 类 号：O413.1[理学—理论物理] TP3[理学—物理]