Observation of pair condensation in the quasi-2D BEC-BCS crossover
Quantum Gases
2015-06-11 v4
Abstract
The condensation of fermion pairs lies at the heart of superfluidity. However, for strongly correlated systems with reduced dimensionality the mechanisms of pairing and condensation are still not fully understood. In our experiment we use ultracold atoms as a generic model system to study the phase transition from a normal to a condensed phase in a strongly interacting quasi-two-dimensional Fermi gas. Using a novel method, we obtain the in situ pair momentum distribution of the strongly interacting system and observe the emergence of a low-momentum condensate at low temperatures. By tuning temperature and interaction strength we map out the phase diagram of the quasi-2D BEC-BCS crossover.
Keywords
Cite
@article{arxiv.1409.5373,
title = {Observation of pair condensation in the quasi-2D BEC-BCS crossover},
author = {M. G. Ries and A. N. Wenz and G. Zürn and L. Bayha and I. Boettcher and D. Kedar and P. A. Murthy and M. Neidig and T. Lompe and S. Jochim},
journal= {arXiv preprint arXiv:1409.5373},
year = {2015}
}