Linear optical controlled-<span class="sc">NOT</span> gate in the coincidence basis

T. C. Ralph; N. K. Langford; T. B. Bell; A. G. White

doi:10.1103/PhysRevA.65.062324

Linear optical controlled-NOT gate in the coincidence basis

T. C. Ralph, N. K. Langford, T. B. Bell, and A. G. White

Phys. Rev. A 65, 062324 – Published 20 June 2002

Abstract

We describe the operation and tolerances of a nondeterministic, coincidence basis, quantum controlled-NOT gate for photonic qubits. It is constructed solely from linear optical elements and requires only a two-photon source for its demonstration. Its success probability is $1 / 9 .$

Received 16 December 2001

DOI:https://doi.org/10.1103/PhysRevA.65.062324

Authors & Affiliations

T. C. Ralph^*, N. K. Langford, T. B. Bell, and A. G. White

Centre for Quantum Computer Technology, Department of Physics, University of Queensland, Queensland 4072, Australia

^*Email address: ralph@physics.uq.edu.au

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Issue

Vol. 65, Iss. 6 — June 2002

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