Evolution of Fermion Pairing from Three to Two Dimensions
Quantum Gases
2015-05-30 v2
Abstract
We follow the evolution of fermion pairing in the dimensional crossover from 3D to 2D as a strongly interacting Fermi gas of Li atoms becomes confined to a stack of two-dimensional layers formed by a one-dimensional optical lattice. Decreasing the dimensionality leads to the opening of a gap in radio-frequency spectra, even on the BCS-side of a Feshbach resonance. The measured binding energy of fermion pairs closely follows the theoretical two-body binding energy and, in the 2D limit, the zero-temperature mean-field BEC-BCS theory.
Cite
@article{arxiv.1110.3058,
title = {Evolution of Fermion Pairing from Three to Two Dimensions},
author = {Ariel T. Sommer and Lawrence W. Cheuk and Mark Jen-Hao Ku and Waseem S. Bakr and Martin W. Zwierlein},
journal= {arXiv preprint arXiv:1110.3058},
year = {2015}
}
Comments
5 pages, 4 figures