Tunneling in the self-trapped regime of a two-well Bose-Einstein condensate
Campbell, David K.
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Citation (published version)Tadeusz Pudlik, Holger Hennig, Dirk Witthaut, David K Campbell. 2014. "Tunneling in the self-trapped regime of a two-well Bose-Einstein condensate." PHYSICAL REVIEW A, Volume 90, Issue 5, pp. ? - ? (11). https://doi.org/10.1103/PhysRevA.90.053610
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.