Local transformation of two einstein-podolsky-rosen photon pairs into a three-photon w state.
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.
Tashima
Toshiyuki
T
Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan. tashima@qi.mp.es.osaka-u.ac.jp
Wakatsuki
Tetsuroh
T
Ozdemir
Sahin Kaya
SK
Yamamoto
Takashi
T
Koashi
Masato
M
Imoto
Nobuyuki
N