Optimizing a Phase Gate Using Quantum Interference

Eric Charron, Eite Tiesinga, Frederick Mies, and Carl Williams
Phys. Rev. Lett. 88, 077901 – Published 29 January 2002
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Abstract

A controlled interference is proposed to reduce, by two orders of magnitude, the decoherence of a quantum gate for which the gate fidelity is limited by coupling to states other than the |0 and |1 qubit states. This phenomenon is demonstrated in an ultracold neutral atom implementation of a phase gate using qubits based on motional states in individual wells of an optical lattice.

  • Received 16 July 2001

DOI:https://doi.org/10.1103/PhysRevLett.88.077901

©2002 American Physical Society

Authors & Affiliations

Eric Charron1, Eite Tiesinga2, Frederick Mies2, and Carl Williams2

  • 1Laboratoire de Photophysique Moléculaire du CNRS, Université Paris XI, 91405 Orsay Cedex, France
  • 2Atomic Physics Division, NIST, 100 Bureau Drive Stop 8423, Gaithersburg, Maryland 20899-8423

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Issue

Vol. 88, Iss. 7 — 18 February 2002

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