Phys. Rev. A 68, 032316 (2003) [4 pages]Experimental controlled-NOT logic gate for single photons in the coincidence basisReceived 2 April 2003; published 26 September 2003 We report a proof-of-principle demonstration of a probabilistic controlled-NOT gate for single photons. Single-photon control and target qubits were mixed with a single ancilla photon in a device constructed using only linear optical elements. The successful operation of the controlled-NOT gate relied on post-selected three-photon interference effects, which required the detection of the photons in the output modes. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.68.032316
DOI:
10.1103/PhysRevA.68.032316
PACS:
03.67.Lx, 42.50.Dv, 42.65.Lm
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