Macroscooic inequivalent entanglement witness in
Heisenberg spin Chain
Zhang Ting; Chen Ping-Xing; Li Cheng-Zu
【期刊名称】《《中国物理：英文版》》 【年(卷),期】2009(018)004
【摘要】Motivated by the wise idea of entanglement witness(EW),we present
an
inequivalent
entanglement
witness(IEEW)that
can
analogously classify certain eigenstates entangled in inequivalent ways under stochastic local operations and classical communication(SLOCC)in the Heisenberg spin chain.Since the IEEW is the absolute value of magnetization |M| that is a macroscopically measurable quantity,our conclusions provide a macroscopic method to detect incquivalent entanglement between microscopic spins,on the one hand,and clearly show that inequivalent entanglement can yield different macroscopic effects,on the other hand. 【总页数】6页(1346-1351) 【关键词】
【作者】Zhang Ting; Chen Ping-Xing; Li Cheng-Zu
【作者单位】Department of Physics Science College National University of Defence Technology Changsha 410073 China 【正文语种】中文 【中图分类】O4
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Macroscooic inequivalent entanglement witness in Heisenberg spin Chain
