Collective quantum jumps of Rydberg atoms

Details Collective quantum jumps of Rydberg atoms Collective quantum jumps of Rydberg atoms

2011-09-29

arxiv.org/abs/1109.6506v1

Phys. Rev. Lett. 108, 023602 (2012)

Physics

Condensed Matter

Quantum Gases

4 pages

Scientific paper

10.1103/PhysRevLett.108.023602

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.

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