Lookup NU author(s): Professor Nikolaos Proukakis
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This paper discusses the feasibility of experimental control of the flow direction of atomic Bose-Einstein condensates in a double-well potential using phase imprinting. The flow is induced by the application of a time-dependent potential gradient, providing a clear signature of macroscopic quantum tunnelling in atomic condensates. By studying both initial-state preparation and subsequent tunnelling dynamics, we find the parameters to optimize the phase-induced Josephson current. We find that the effect is largest for condensates of up to a few thousand atoms, and is only weakly dependent on trap geometry.
Author(s): Sakellari E, Proukakis NP, Leadbeater M, Adams CS
Publication type: Article
Publication status: Published
Journal: New Journal of Physics
ISSN (print): 1367-2630
Publisher: Institute of Physics Publishing Ltd.
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