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

نویسندگان

  • Toshiyuki Tashima
  • Tetsurho Wakatsuki
  • Sahin Kaya Özdemir
  • Takashi Yamamoto
  • Masato Koashi
  • Nobuyuki Imoto
چکیده

We have theoretically proposed and experimentally demonstrated that two EPR photon pairs can be transformed into a threephoton 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.

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تاریخ انتشار 2009