Quantum logic operation with a single trapped ion using the nonlinear interaction beyond the Lamb-Dicke limit

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Published under licence by IOP Publishing Ltd
, , Citation L X Li and G C Guo 2000 J. Opt. B: Quantum Semiclass. Opt. 2 62 DOI 10.1088/1464-4266/2/1/310

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1 Laboratory of Quantum Communication and Quantum Computation

2 Department of Physics, University of Science and Technology of China, HeFei 230026, People's Republic of China

Dates

  1. Received 15 October 1999

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1464-4266/2/1/62

Abstract

Using the nonlinear interaction between internal and external degrees of a trapped ion assisted by a laser beam, we present simplified methods for two-qubit quantum logic operation. The nonlinear interaction arises when the Lamb-Dicke parameter is not small enough. Two special cases, one with the laser tuned to the first red sideband and the other tuned to the carrier, are discussed in detail.

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