Local transformation of two einstein-podolsky-rosen photon Pairs into a three-photon W state

Toshiyuki Tashima; Tetsuroh Wakatsuki; Ş Ahin Kaya Özdemir; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto

doi:10.1103/PhysRevLett.102.130502

Local transformation of two einstein-podolsky-rosen photon Pairs into a three-photon W state

Toshiyuki Tashima, Tetsuroh Wakatsuki, Ş Ahin Kaya Özdemir, Takashi Yamamoto, Masato Koashi, Nobuyuki Imoto

Engineering Science and Mechanics

Research output: Contribution to journal › Article › peer-review

86 Scopus citations

Abstract

We propose and experimentally demonstrate a transformation of two Einstein-Podolsky-Rosen photon pairs distributed among three parties into a three-photon W state using local operations and classical communication. We then characterize the final state using quantum state tomography on the three-photon state and on its marginal bipartite states. The fidelity of the final state to the ideal W state is 0.778±0.043 and the expectation value for its witness operator is -0.111±0.043 implying the success of the proposed local transformation.

Original language	English (US)
Article number	130502
Journal	Physical review letters
Volume	102
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.102.130502
State	Published - Mar 30 2009

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.102.130502

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abstract = "We propose and experimentally demonstrate a transformation of two Einstein-Podolsky-Rosen photon pairs distributed among three parties into a three-photon W state using local operations and classical communication. We then characterize the final state using quantum state tomography on the three-photon state and on its marginal bipartite states. The fidelity of the final state to the ideal W state is 0.778±0.043 and the expectation value for its witness operator is -0.111±0.043 implying the success of the proposed local transformation.",

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AU - Tashima, Toshiyuki

AU - Wakatsuki, Tetsuroh

AU - Özdemir, Ş Ahin Kaya

AU - Yamamoto, Takashi

AU - Koashi, Masato

AU - Imoto, Nobuyuki

PY - 2009/3/30

Y1 - 2009/3/30

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AB - We propose and experimentally demonstrate a transformation of two Einstein-Podolsky-Rosen photon pairs distributed among three parties into a three-photon W state using local operations and classical communication. We then characterize the final state using quantum state tomography on the three-photon state and on its marginal bipartite states. The fidelity of the final state to the ideal W state is 0.778±0.043 and the expectation value for its witness operator is -0.111±0.043 implying the success of the proposed local transformation.

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Local transformation of two einstein-podolsky-rosen photon Pairs into a three-photon W state

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