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Vacuum-field level shifts in a single trapped ion mediated by a single distant mirror

M. A. Wilson·P. Bushev·J. Eschner·F. Schmidt-Kaler·C. Becher·R. Blatt·U. Dorner
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Abstract

A distant mirror leads to a vacuum-induced level shift in a laser-excited atom. This effect has been measured with a single mirror 25 cm away from a single, trapped barium ion. This dispersive action is the counterpart to the mirror's dissipative effect, which has been shown earlier to effect a change in the ion's spontaneous decay [J. Eschner et al., Nature 413, 495-498 (2001)]. The experimental data are well described by 8-level optical Bloch equations which are amended to take into account the presence of the mirror according to the model in [U. Dorner and P. Zoller, Phys. Rev. A 66, 023816 (2002)]. Observed deviations from simple dispersive behavior are attributed to multi-level effects.

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M. A. Wilson, P. Bushev, J. Eschner, F. Schmidt-Kaler, C. Becher, R. Blatt, U. Dorner. 2003-10-24. Vacuum-field level shifts in a single trapped ion mediated by a single distant mirror. https://doi.org/10.1103/physrevlett.91.213602

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