Coherent single atom shuttle between two Bose-Einstein condensates

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We study an atomic quantum dot representing a single hyperfine "impurity" atom which is coherently coupled to two well-separated Bose-Einstein condensates, in the limit when the coupling between the dot and the condensates dominates the inter-condensate tunneling coupling. It is demonstrated that the quantum dot by itself can induce large-amplitude Josephson-like oscillations of the particle imbalance between the condensates, which display a two-frequency behavior. For noninteracting condensates, we provide an approximate solution to the coupled nonlinear equations of motion which allows us to obtain these two frequencies analytically.
4 pages of RevTex4, 4 figures; Rapid Communication in Physical Review A

Keywords

Other Condensed Matter, Quantum Physics

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/229823

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0709.1542
 http://arxiv.org/abs/0709.1542
 Phys. Rev. A 77, 031602(R) (2008)
 doi:10.1103/PhysRevA.77.031602

Collections

arXiv