Scheme for implementing linear optical quantum iSWAP gate with conventional photon detectors
Source: J. Opt. Soc. Am. B 27, 27 (2010); doi:10.1364/JOSAB.27.000027
Published 2009-11-03
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A simple scheme is proposed to implement a two-qubit linear optical quantum iSWAP gate that is a universal gate in quantum computation and quantum information processing. By the interference effect of the polarized photons, a quantum iSWAP gate can be achieved with a low success probability (
4/32, with being the quantum efficiency of photon detectors). The scheme is based only on simple linear optical elements, a pair of two-photon polarization entangled states, and conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states, which greatly decreases the experimental difficulty of implementing linear optical quantum computation.
©2009 Optical Society of America
4/32, with being the quantum efficiency of photon detectors). The scheme is based only on simple linear optical elements, a pair of two-photon polarization entangled states, and conventional photon detectors that only distinguish the vacuum and nonvacuum Fock number states, which greatly decreases the experimental difficulty of implementing linear optical quantum computation.
©2009 Optical Society of America
| History: | Received 25 August 2009; revised 28 October 2009; accepted 2 November 2009; published 2009-11-03 |
| Permalink: | http://dx.doi.org/10.1364/JOSAB.27.000027 |
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