Volume 78, Number 1, April 2007
|Number of page(s)||6|
|Published online||16 March 2007|
Coherently controlled entanglement generation in a binary Bose-Einstein condensate
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: firstname.lastname@example.org email@example.com
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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