paper

Collective quantum jumps of Rydberg atoms

arXiv:1109.6506 · doi:10.1103/PhysRevLett.108.023602

Abstract

We study an open quantum system of atoms with long-range Rydberg interaction, laser driving, and spontaneous emission. Over time, the system occasionally jumps between a state of low Rydberg population and a state of high Rydberg population. The jumps are inherently collective and in fact exist only for a large number of atoms. We explain how entanglement and quantum measurement enable the jumps, which are otherwise classically forbidden.

4 pages

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