Collective many-body interaction in Rydberg dressed atoms

Details Collective many-body interaction in Rydberg dressed atoms Collective many-body interaction in Rydberg dressed atoms

2010-04-14

arxiv.org/abs/1004.2499v2

Physics

Condensed Matter

Quantum Gases

4 pages, 3 figures Accepted for publication as a Letter in Physical Review Letters

Scientific paper

We present a method to control the shape and character of the interaction potential between cold atomic gases by weakly dressing the atomic ground state with a Rydberg level. For increasing particle densities, a crossover takes place from a two-particle interaction into a collective many-body interaction, where the dipole-dipole/van der Waals Blockade phenomenon between the Rydberg levels plays a dominant role. We study the influence of these collective interaction potential on a Bose-Einstein condensate, and present the optimal parameters for its experimental detection.

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