A two-dimensional Fermi liquid with attractive interactions
Quantum Gases
2012-09-28 v2
Abstract
We realize and study an attractively interacting two-dimensional Fermi liquid. Using momentum resolved photoemission spectroscopy, we measure the self-energy, determine the contact parameter of the short-range interaction potential, and find their dependence on the interaction strength. We successfully compare the measurements to a theoretical analysis, properly taking into account the finite temperature, harmonic trap, and the averaging over several two-dimensional gases with different peak densities.
Cite
@article{arxiv.1206.5380,
title = {A two-dimensional Fermi liquid with attractive interactions},
author = {B. Fröhlich and M. Feld and E. Vogt and M. Koschorreck and M. Köhl and C. Berthod and T. Giamarchi},
journal= {arXiv preprint arXiv:1206.5380},
year = {2012}
}