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arXiv · 1212.0477

Efimov States of Heavy Impurities in a Bose-Einstein Condensate

N. T. Zinner
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Abstract

We consider the problem of two heavy impurity particles embedded in a gas of weakly-interacting light mass bosonic particles in the condensed state. Using the Bogoliubov approach to describe the bosonic gas and the Born-Oppenheimer approximation for the three-body dynamics, we calculate the modification to the heavy-heavy two-body potential due to the presence of the condensate. For the case of resonant interaction between the light bosons and the impurities, we present (semi)-analytical results for the potential in the limit of a large condensate coherence length. In particular, we find a formula for the modification of the Efimov scaling factor due to the presence of a degenerate bosonic gas background.

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N. T. Zinner. 2013-04-03. Efimov States of Heavy Impurities in a Bose-Einstein Condensate. https://doi.org/10.1209/0295-5075%2F101%2F60009

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