Phys. Rev. Lett. 92, 047903 (2004) [4 pages]Remote Preparation of a Single-Mode Photonic Qubit by Measuring Field Quadrature NoiseReceived 25 August 2003; published 29 January 2004 An electromagnetic field quadrature measurement, performed on one of the modes of the nonlocal single-photon state α|1,0⟩-β|0,1⟩, collapses it into a superposition of the single-photon and vacuum states in the other mode. We use this effect to implement remote preparation of arbitrary single-mode photonic qubits conditioned on observation of a preselected quadrature value. The preparation efficiency of the resulting qubit can be higher than that of the initial single photon. © 2004 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.92.047903
DOI:
10.1103/PhysRevLett.92.047903
PACS:
03.67.Hk, 03.67.Mn, 42.50.Dv
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