Quantum optical Fredkin gate

G. J. Milburn
Phys. Rev. Lett. 62, 2124 – Published 1 May 1989
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Abstract

A simple optical model to realize a reversible, potentially error-free logic gatea Fredkin gateis discussed. The device dissipates no energy and makes use of the Kerr nonlinearity to produce intensity-dependent phase shifts. The analysis shows that quantum mechanics permits the operation of error-free logic gates which dissipate no energy. However, even though the device is nondissipative, error-free performance only occurs under particular operating conditions.

  • Received 1 August 1988

DOI:https://doi.org/10.1103/PhysRevLett.62.2124

©1989 American Physical Society

Authors & Affiliations

G. J. Milburn

  • Department of Physics, University of Queensland, St. Lucia 4067, Brisbane, Australia

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Issue

Vol. 62, Iss. 18 — 1 May 1989

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