Collective many-body interaction in Rydberg dressed atoms

Autor:	Honer, Jens, Weimer, Hendrik, Pfau, Tilman, Büchler, Hans Peter
Rok vydání:	2010
Předmět:	Condensed Matter - Quantum Gases Quantum Physics
Zdroj:	Phys. Rev. Lett. 105, 160404 (2010)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.105.160404
Popis:	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. Comment: 4 pages, 3 figures Accepted for publication as a Letter in Physical Review Letters
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1004.2499 Zobrazit plný text záznamu View this record from Arxiv