Phys. Rev. Lett. 91, 027901 (2003) [4 pages]Classical and Quantum Communication without a Shared Reference FrameReceived 3 March 2003; published 7 July 2003 We show that communication without a shared reference frame is possible using entangled states. Both classical and quantum information can be communicated with perfect fidelity without a shared reference frame at a rate that asymptotically approaches one classical bit or one encoded qubit per transmitted qubit. We present an optical scheme to communicate classical bits without a shared reference frame using entangled photon pairs and linear optical Bell state measurements. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.027901
DOI:
10.1103/PhysRevLett.91.027901
PACS:
03.67.Hk, 03.30.+p, 03.65.Ta, 03.65.Ud
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