Issue |
EPL
Volume 78, Number 1, April 2007
|
|
---|---|---|
Article Number | 10009 | |
Number of page(s) | 6 | |
Section | General | |
DOI | https://doi.org/10.1209/0295-5075/78/10009 | |
Published online | 16 March 2007 |
Coherently controlled entanglement generation in a binary Bose-Einstein condensate
1
Institut für Physik, Carl von Ossietzky Universität - D-26111 Oldenburg, Germany
2
Laboratoire Kastler Brossel, École Normale Supérieure - 24 rue Lhomond, F-75231 Paris Cedex 05, France
Corresponding authors: teichmann@theorie.physik.uni-oldenburg.de christoph.weiss@lkb.ens.fr
Received:
27
September
2006
Accepted:
15
February
2007
Considering a two-component Bose-Einstein condensate in a double-well potential, a method to generate a Bell state consisting of two spatially separated condensates is suggested. For repulsive interactions, the required tunnelling control is achieved numerically by varying the amplitude of a sinusoidal potential difference between the wells. Both numerical and analytical calculations reveal the emergence of a highly entangled mesoscopic state.
PACS: 03.75.Gg – Entanglement and decoherence in Bose-Einstein condensates / 03.75.Lm – Tunneling, Josephson effect, Bose-Einstein condensates in periodic potentials, solitons, vortices, and topological excitations / 03.75.Mn – Multicomponent condensates; spinor condensates
© Europhysics Letters Association, 2007
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