Time-dependent tunneling of Bose-Einstein condensates

Zobay, O and Garraway, B M (2000) Time-dependent tunneling of Bose-Einstein condensates. Physical Review A, 61 (3). pp. 33603-336037. ISSN 10502947

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The influence of atomic interactions on time-dependent tunneling processes of Bose-Einstein condensates is investigated. In a variety of contexts the relevant condensate dynamics can be described by a Landau-Zener equation modified by the appearance of nonlinear contributions. Based on this equation it is discussed how the interactions modify the tunneling probability. In particular, it is shown that for certain parameter values, due to a nonlinear hysteresis effect, complete adiabatic population transfer is impossible however slowly the resonance is crossed. The results also indicate that the interactions can cause significant increase as well as decrease of tunneling probabilities that should be observable in currently feasible experiments.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Barry Garraway
Date Deposited: 06 Feb 2012 20:58
Last Modified: 01 Jul 2019 13:30
URI: http://sro.sussex.ac.uk/id/eprint/28902

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