Remote preparation of three-photon entangled states via single-photon measurement

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Remote state preparation (RSP) provides an indirect way of transferring quantum information based on the nonlocal effect of quantum measurement. Although RSP has been demonstrated in recent years to remotely prepare multiphoton states, quantum measurement on the same number of additional photons was required, i.e., to prepare N-photon states via RSP, quantum measurement on the other N-photons was required, hence significantly limiting practicality and applicability of RSP. Here we report an experimental demonstration of remote preparation of three-photon entangled states by measuring only a single-photon entangled with the three photons. We further generalize our protocol to prepare multiphoton entangled states with arbitrary photon number and purity and to prepare a genuinely three-partite entangled state, both via single-photon measurement. As our RSP scheme relies on the nonlinearity induced by single-photon measurement, it enables quantum state engineering of multiphoton entangled states beyond the linear optical limit. Our results are expected to have significant impacts on quantum metrology and quantum information processing.
Publisher
AMER PHYSICAL SOC
Issue Date
2016-10
Language
English
Article Type
Article
Citation

PHYSICAL REVIEW A, v.94, no.4, pp.042329

ISSN
2469-9926
DOI
10.1103/PhysRevA.94.042329
URI
http://hdl.handle.net/10203/247184
Appears in Collection
PH-Journal Papers(저널논문)
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