Experimental controlled-NOT logic gate for single photons in the coincidence basis
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Type of Work4 pages
Citation of Original PublicationT. B. Pittman, M. J. Fitch, B. C Jacobs, and J. D. Franson, Experimental controlled-NOT logic gate for single photons in the coincidence basis, Phys. Rev. A 68, 032316 (2003), DOI:https://doi.org/10.1103/PhysRevA.68.032316
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©2003 The American Physical Society
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.