%0 Journal Article
%T Quantum Discord of a Two-Qubit Anisotropy XXZ Heisenberg Chain with  Dzyaloshinskii-Moriya Interaction
%A Nour Zidan
%J Journal of Quantum Information Science
%P 104-110
%@ 2162-576X
%D 2014
%I Scientific Research Publishing
%R 10.4236/jqis.2014.42011
%X <p style=\"text-align:justify;\">
	<SPAN style=\"FONT-FAMILY: ; FONT-SIZE: 10pt\" ?><span style=\"font-family:Verdana;\">We investigate the quantum discord of a two-qubit anisotropy XXZ Heisenberg chain with Dzyaloshinskii-Moriya (</span><i><span style=\"font-family:Verdana;\">DM</span></i><span style=\"font-family:Verdana;\">) interaction under magnetic field. It is shown that the quantum discord highly depends on the system¡¯s temperature </span><i><span style=\"font-family:Verdana;\">T</span></i><span style=\"font-family:Verdana;\">, </span><i><span style=\"font-family:Verdana;\">DM</span></i><span style=\"font-family:Verdana;\"> interaction </span><i><span style=\"font-family:Verdana;\">D</span></i><span style=\"font-family:Verdana;\">, homogenous magnetic field </span><i><span style=\"font-family:Verdana;\">B</span></i><span style=\"font-family:Verdana;\"> and the anisotropy ¦¤. For lower temperature </span><i><span style=\"font-family:Verdana;\">T</span></i><span style=\"font-family:Verdana;\">, by modulating </span><i><span style=\"font-family:Verdana;\">D</span></i><span style=\"font-family:Verdana;\"> and </span><i><span style=\"font-family:Verdana;\">B</span></i><span style=\"font-family:Verdana;\">, the quantum discord can be controlled and the quantum discord switch can be realized.</span></span> 
</p>
%K Quantum Discord
%K Heisenberg Chain
%K Dzyaloshinskii-Moriya Interaction
%K Anisotropy
%K Magnetic Field
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=46452