Nearly deterministic Bell measurement using quantum communication bus
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  • 作者:Jia-Ming Wang ; Meng-zheng Zhu ; Dong Wang ; Liu Ye
  • 关键词:Bell states measurement ; Cross ; Kerr nonlinearities ; Qubus
  • 刊名:Quantum Information Processing
  • 出版年:2017
  • 出版时间:March 2017
  • 年:2017
  • 卷:16
  • 期:3
  • 全文大小:
  • 刊物类别:Physics and Astronomy
  • 刊物主题:Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics;
  • 出版者:Springer US
  • ISSN:1573-1332
  • 卷排序:16
文摘
We present a scheme to implement Bell states measurement for an arbitrary number of photons by using robust continuous variable coherent modes, called as quantum communication bus (qubus) and weak cross-Kerr nonlinearities. Remarkably, the success probability of our scheme is close to unity, and our scheme does not require any ancillary resource entanglement. Our scheme is likely to yield versatile applications for quantum computation and quantum teleportation.
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