Local Transformation of Two EPR Photon Pairs into a Three-Photon W State Using a Polarization Dependent Beamsplitter

Toshiyuki Tashima; Tetsurho Wakatsuki; Şahin Özdemir; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto

Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers

Research Article

Local Transformation of Two EPR Photon Pairs into a Three-Photon W State Using a Polarization Dependent Beamsplitter

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@INPROCEEDINGS{10.1007/978-3-642-11731-2_5,
    author={Toshiyuki Tashima and Tetsurho Wakatsuki and Şahin \O{}zdemir and Takashi Yamamoto and Masato Koashi and Nobuyuki Imoto},
    title={Local Transformation of Two EPR Photon Pairs into a Three-Photon W State Using a Polarization Dependent Beamsplitter},
    proceedings={Quantum Communication and Quantum Networking. First International Conference, QuantumComm 2009, Naples, Italy, October 26-30, 2009, Revised Selected Papers},
    proceedings_a={QUANTUMCOMM},
    year={2012},
    month={10},
    keywords={Multipartite entanglement W state LOCC},
    doi={10.1007/978-3-642-11731-2_5}
}

Toshiyuki Tashima
Tetsurho Wakatsuki
Şahin Özdemir
Takashi Yamamoto
Masato Koashi
Nobuyuki Imoto
Year: 2012
Local Transformation of Two EPR Photon Pairs into a Three-Photon W State Using a Polarization Dependent Beamsplitter
QUANTUMCOMM
Springer
DOI: 10.1007/978-3-642-11731-2_5

Toshiyuki Tashima¹^,*, Tetsurho Wakatsuki¹, Şahin Özdemir^,*, Takashi Yamamoto¹, Masato Koashi¹, Nobuyuki Imoto¹

1: Osaka University

*Contact email: [email protected], [email protected]

Abstract

We have theoretically proposed and experimentally demonstrated that two EPR photon pairs can be transformed into a three-photon W state by local operation and classical communication (LOCC). The fidelity of the final state to the ideal W state was 0.778±0.043. The obtained expectation value of the witness operator for distinguishing between the three-photon W state and bi-separable states was − 0.111±0.043.

Keywords: Multipartite entanglement W state LOCC

Published: 2012-10-11

: http://dx.doi.org/10.1007/978-3-642-11731-2_5