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arXiv · 1501.03269

Spatial Patterns of Rydberg Excitations from Logarithmic Pair Interactions

Wolfgang Lechner·Peter Zoller
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Abstract

The collective excitations in ensembles of dissipative, laser driven ultracold atoms exhibit crystal-like patterns, a many-body effect of the Rydberg blockade mechanism. These crystalline structure are revealed in experiment from a post-selection of configurations with fixed numbers of excitations. Here, we show that these sub-ensemble can be well represented by ensembles of effective particles that interact via logarithmic pair potentials. This allows one to study the emergent patterns with a small number of effective particles to determine the phases of Rydberg crystals and to systematically study contributions from $N$-body terms.

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Wolfgang Lechner, Peter Zoller. 2015-01-14. Spatial Patterns of Rydberg Excitations from Logarithmic Pair Interactions. https://doi.org/10.1103/physrevlett.115.125301

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