Controllable entanglement sudden birth of Heisenberg spins  

作　　者：郑强 支启军 张小平 任中洲 

机构地区：[1]School of Mathematics and Computer Science,Guizhou Normal University [2]School of Physics and Electronics,Guizhou Normal University [3]School of Physics,Nanjing University

出　　处：《Chinese Physics C》2011年第2期135-138,共4页中国物理C（英文版）

基　　金：Supported by National Fundamental Research Programme of China (2010CB327803, 2007CB815004);National Natural Science Foundation of China (11065005, 10865004, 10775123);Governor's Foundation for Science and Education Elites of Guizhou Province QSZHZ (2010)20;Natural Science and Technology Foundation of Guizhou Province ([2009]2267);Doctor Funding of Guizhou Normal University

摘　　要：We investigate the Entanglement Sudden Birth （ESB） of two Heisenberg spins A and B. The third controller, qutrit C is introduced, which only has the Dzyaloshinskii-Moriya （DM） spin-orbit interaction with qubit B. We find that the DM interaction is necessary to induce the Entanglement Sudden Birth of the system qubits A and B, and the initial states of the system qubits and the qurit C are also important to control its Entanglement Sudden Birth.We investigate the Entanglement Sudden Birth （ESB） of two Heisenberg spins A and B. The third controller, qutrit C is introduced, which only has the Dzyaloshinskii-Moriya （DM） spin-orbit interaction with qubit B. We find that the DM interaction is necessary to induce the Entanglement Sudden Birth of the system qubits A and B, and the initial states of the system qubits and the qurit C are also important to control its Entanglement Sudden Birth.

关 键 词：entanglement sudden birth Dzyaloshinskii-Moriya interaction QUTRIT 

分 类 号：O572.243[理学—粒子物理与原子核物理]