A proposal of quantum logic gates using cold trapped ions in a cavity

Abstract

We propose a scheme for implementation of logical gates in a trapped ion inside a high-Q cavity. The ion is simultaneously interacting with a (classical) laser field as well as with the (quantized) cavity field. We demonstrate that simply by tuning the ionic internal levels with the frequencies of the fields, it is possible to construct a controlled-NOT gate in a three step procedure, having the ion's internal as well as motional levels as qubits. The cavity field is used as an auxiliary qubit and basically remains in the vacuum state.

4 pages, LaTeX, misprints corrected

References in corpus (1)

• Entanglement between motional states of a single trapped ion and light

Cited by in corpus (7)

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• Effective cross-Kerr nonlinearity and robust phase gates with trapped ions
• Nonclassical effects in cold trapped ions inside a cavity
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• Sub-Doppler Cavity Cooling Beyond The Lamb-Dicke Limit
• Generation of hybrid entanglement between a mirror and a trapped ion