Jesper Levinsen, Stefan K. Baur
We study the ground state of a highly imbalanced Fermi gas under quasi-two-dimensional confinement. We find that for typical experimental conditions, the location of the recently predicted polaron-molecule transition is shifted to lower values of the vacuum binding energy due to the interplay between transverse confinement and many-body physics. The energy of the attractive polaron is calculated in the 2D-3D crossover and displays a series of cusps before converging towards the 3D limit.
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http://arxiv.org/abs/1202.6564
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