Spatial Patterns of Rydberg Excitations from Logarithmic Pair Interactions
Quantum Gases
2015-10-28 v1 Quantum Physics
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 -body terms.
Cite
@article{arxiv.1501.03269,
title = {Spatial Patterns of Rydberg Excitations from Logarithmic Pair Interactions},
author = {Wolfgang Lechner and Peter Zoller},
journal= {arXiv preprint arXiv:1501.03269},
year = {2015}
}