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

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

2001-12-07

arxiv.org/abs/quant-ph/0112044v3

Phys. Lett. A 299, 423 (2002)

Physics

Quantum Physics

4 pages, LaTeX, misprints corrected

Scientific paper

10.1016/S0375-9601(02)00734-X

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.

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