C. Ates, I. Lesanovsky, C. S. Adams, K. J. Weatherill
We present a fast and quasi-deterministic protocol for the production of single ions and electrons from a cloud of laser cooled atoms. The approach is based on a two-step process where first a single Rydberg atom is photo-excited from a dipole-blockade configuration and subsequently ionized by an electric field pulse. We theoretically describe these excitation-ionization cycles via dynamical quantum maps and observe a rich behavior of the ionization dynamics as a function of laser Rabi frequency, pulse duration and particle number. Our results show that a fast sequential heralded production of single charges particles is achievable even from an unstructured and fluctuating atomic ensemble.
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http://arxiv.org/abs/1302.6502
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