T. B. Pittman, B. C Jacobs, J. D. Franson
Published 2005-02-07, updated 2005-02-11Version 2
We describe a laboratory demonstration of a quantum error correction procedure that can correct intrinsic measurement errors in linear-optics quantum gates. The procedure involves a two-qubit encoding and fast feed-forward-controlled single-qubit operations. In our demonstration the qubits were represented by the polarization states of two single-photons from a parametric down-conversion source, and the real-time feed-forward control was implemented using an electro-optic device triggered by the output of single-photon detectors.
Comments: 5 pages, 3 figures; v2 has updated references
Journal: Phys. Rev. A 71, 052332 (2005)
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