W。D ü r 等。证明了经由本地操作和古典通讯(LOCC ) 从任意的 W 班状态的一个拷贝获得一个 GHZ 状态是不可能的[W。D ü r， G。Vidal，和 J.I Cirac， Phys。加快。一 62 (2000 ) 062314 ] 。在我们的纸，更一般的案例小心...W。D ü r 等。证明了经由本地操作和古典通讯(LOCC ) 从任意的 W 班状态的一个拷贝获得一个 GHZ 状态是不可能的[W。D ü r， G。Vidal，和 J.I Cirac， Phys。加快。一 62 (2000 ) 062314 ] 。在我们的纸，更一般的案例小心地被调查。我们首先证明与任意的 W 班状态的二个拷贝的供应，我们能总是构造一个明确的过程与非零可能性提取一个 GHZ 状态。然后基于这结果，为从任意的 W 班状态的 n 拷贝提取 GHZ 状态的一个简单过程被介绍。最后，我们简短讨论应用。展开更多
<Abstract>An explicit procedure for transforming one bipartite entangled state into another via local operations and classical communication (LOCC) is presented.Our procedure is much simper than the previous one...<Abstract>An explicit procedure for transforming one bipartite entangled state into another via local operations and classical communication (LOCC) is presented.Our procedure is much simper than the previous ones in the sense that,it only involves two steps and the explicit expression of local general measurement used in the procedure can be obtained by solving a set of linear equations,Furthermore,this procedure is still applicable in high dimensional case.展开更多
基金National Natural Science Foundation of China under Grant No.10404039
文摘W。D ü r 等。证明了经由本地操作和古典通讯(LOCC ) 从任意的 W 班状态的一个拷贝获得一个 GHZ 状态是不可能的[W。D ü r， G。Vidal，和 J.I Cirac， Phys。加快。一 62 (2000 ) 062314 ] 。在我们的纸，更一般的案例小心地被调查。我们首先证明与任意的 W 班状态的二个拷贝的供应，我们能总是构造一个明确的过程与非零可能性提取一个 GHZ 状态。然后基于这结果，为从任意的 W 班状态的 n 拷贝提取 GHZ 状态的一个简单过程被介绍。最后，我们简短讨论应用。
基金supported by National Natural Science Foundation of China under Grant No.10404039
文摘<Abstract>An explicit procedure for transforming one bipartite entangled state into another via local operations and classical communication (LOCC) is presented.Our procedure is much simper than the previous ones in the sense that,it only involves two steps and the explicit expression of local general measurement used in the procedure can be obtained by solving a set of linear equations,Furthermore,this procedure is still applicable in high dimensional case.
