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Tunneling in the self-trapped regime of a two-well Bose-Einstein condensate

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Hennig,  Holger
Department of Nonlinear Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Witthaut,  Dirk
Max Planck Research Group Network Dynamics, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Citation

Pudlik, T., Hennig, H., Witthaut, D., & Campbell, D. (2014). Tunneling in the self-trapped regime of a two-well Bose-Einstein condensate. Physical Review A, 90: 053610. doi:10.1103/PhysRevA.90.053610.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-0EED-A
Abstract
Starting from a mean-field model of the Bose-Einstein condensate dimer, we reintroduce classically forbidden tunneling through a Bohr-Sommerfeld quantization approach. We find closed-form approximations to the tunneling frequency more accurate than those previously obtained using different techniques. We discuss the central role that tunneling in the self-trapped regime plays in a quantitatively accurate model of a dissipative dimer leaking atoms to the environment. Finally, we describe the prospects of experimental observation of tunneling in the self-trapped regime, both with and without dissipation.