摘要
提出实验上可行的制备冷囚禁多离子W态的方案。在此方案中制备的是对称W态,只需两个步骤,而在文献[Hàaner H,Hàansel W,Roos C F,et al.Nature,2005,438:643-646.]中制备相同的W态,则需要更多的操作步骤,考虑到消相干机制,减少纠缠态制备过程中的步骤是非常有必要的,并且在方案中只需要一束激光。
An experimentally feasible scheme is proposed for generating multipartite entangled W states of cold trapped ions. This scheme is to prepare canonical （fully symmetric） W states by two steps. However, in the paper [Haaner H, Haansel W, RoosCF, et al. Nature, 2005, 438： 643-646.] mores steps were required for generating the same W states. In view of decoherence mechanism, a reduction of the number of operations for the state preparation is crucial, in addition only one laser beam is required in our scheme.
出处
《量子光学学报》
CSCD
北大核心
2011年第4期269-272,共4页
Journal of Quantum Optics
基金
安徽省高校省级优秀人才基金(2010SQRL146)
安徽省高校自然科学研究基金(KJ2010B106)
阜阳师范学院自然科学研究项目(2010CXY082011FSKJ11)
关键词
量子信息学
纠缠态
离子阱
W态
quantum information
entangled state
ion-trap
W state
