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Efficient entanglement concentration for arbitrary less-hyperentanglement multi-photon W states with linear optics

  • Lin Lin Fan
  • , Yan Xia*
  • , Jie Song
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We present an efficient protocol to concentrate arbitrary less-hyperentangled multi-photon W states to the maximally hyperentangled multi-photon W state with parameter-splitting method and linear optics elements. Compared with previous entanglement concentration works, the present protocol does not need two copies of partially entangled states or the ancillary single photon. Moreover, we discuss the feasibility of the setups of the protocol, concluding that the present protocol is feasible with the current technology. Thus, the protocol may be more meaningful in practical quantum information applications.

Original languageEnglish
Pages (from-to)1967-1978
Number of pages12
JournalQuantum Information Processing
Volume13
Issue number9
DOIs
StatePublished - Sep 2014

Keywords

  • Entanglement concentration
  • Hyperentanglement
  • Linear optical element
  • Multi-photon W state

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