Phase-diagram and dynamics of Rydberg-dressed fermions in two-dimensions
Quantum Gases
2017-11-15 v1
Abstract
We investigate the ground-state properties and the collective modes of a two-dimensional two-component Rydberg-dressed Fermi liquid in the dipole-blockade regime. We find instability of the homogeneous system toward phase separated and density ordered phases, using the Hartree-Fock and random-phase approximations, respectively. The spectral weight of collective density oscillations in the homogenous phase also signals the emergence of density-wave instability. We examine the effect of exchange-hole on the density-wave instability and on the collective mode dispersion using the Hubbard local-field factor.
Keywords
Cite
@article{arxiv.1706.03222,
title = {Phase-diagram and dynamics of Rydberg-dressed fermions in two-dimensions},
author = {Reyhaneh Khasseh and Saeed H. Abedinpour and B. Tanatar},
journal= {arXiv preprint arXiv:1706.03222},
year = {2017}
}
Comments
7 pages, 6 figures, submitted