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.

arXiv comment4 pages, LaTeX, misprints corrected

References in corpus (5)

• Experimental issues in coherent quantum-state manipulation of trapped atomic ions
• Quantum state engineering on an optical transition and decoherence in a Paul trap
• Quantum state transfer between motion and light
• Entanglement between motional states of a single trapped ion and light
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Cited by in corpus (7)

• A review on quantum information processing in cavities
• Effective cross-Kerr nonlinearity and robust phase gates with trapped ions
• Nonclassical effects in cold trapped ions inside a cavity
• Engineering phonon-photon interactions with a driven trapped ion in a cavity
• Fast quantum logic gates with trapped ions interacting with external laser and quantized cavity field beyond the Lamb-Dicke regime
• Sub-Doppler Cavity Cooling Beyond The Lamb-Dicke Limit
• Generation of hybrid entanglement between a mirror and a trapped ion