Issue
EPL
Volume 86, Number 6, June 2009
Article Number 60008
Number of page(s) 6
Section General
DOI http://dx.doi.org/10.1209/0295-5075/86/60008
Published online 13 July 2009
EPL, 86 (2009) 60008
DOI: 10.1209/0295-5075/86/60008

Feasibility of experimental realization of entangled Bose-Einstein condensation

Yu Shi

Department of Physics, Fudan University - Shanghai 200433, China and Kavli Institute for Theoretical Physics China at the Chinese Academy of Sciences - Beijing 100080, China

yushi@fudan.edu.cn

received 20 March 2009; accepted in final form 11 June 2009; published June 2009
published online 13 July 2009

Abstract
We examine the practical feasibility of the experimental realization of the so-called entangled Bose-Einstein condensation (BEC), occurring in an entangled state of two atoms of different species. We demonstrate that if the energy gap remains vanishing, the entangled BEC persists as the ground state of the concerned model in a wide parameter regime. We establish the experimental accessibility of the isotropic point of the effective parameters, in which the entangled BEC is the exact ground state, as well as the consistency with the generalized Gross-Pitaevskii equations. The transition temperature is estimated. Possible experimental implementations are discussed in detail.

PACS
03.75.Mn - Multicomponent condensates; spinor condensates.
03.75.Gg - Entanglement and decoherence in Bose-Einstein condensates.

© EPLA 2009