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Light-shift-induced quantum gates for ions in thermal motion

Daniel Jonathan·Martin B. Plenio
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Abstract

An effective interaction between trapped ions in thermal motion can be generated by illuminating them simultaneously with a single laser resonant with the ionic carrier frequency. The ac Stark-shift induces simultaneous `virtual' two-phonon transitions via several motional modes. Within a certain laser intensity range these transitions can interfere constructively, resulting in a relatively fast, heating-resistant two-qubit logic gate.

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Daniel Jonathan, Martin B. Plenio. 2001-03-26. Light-shift-induced quantum gates for ions in thermal motion. https://doi.org/10.1103/physrevlett.87.127901

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