Article,

Quantum Computation with Ions in Thermal Motion

, and .
Phys. Rev. Lett., 82 (9): 1971--1974 (March 1999)
DOI: 10.1103/physrevlett.82.1971

Abstract

We propose an implementation of quantum logic gates via virtual vibrational excitations in an ion-trap quantum computer. Transition paths involving unpopulated vibrational states interfere destructively to eliminate the dependence of rates and revolution frequencies on vibrational quantum numbers. As a consequence, quantum computation becomes feasible with ions whose vibrations are strongly coupled to a thermal reservoir.

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