Phase-diagram and dynamics of Rydberg-dressed fermions in two-dimensions
arXiv:1706.03222 · doi:10.1103/PhysRevA.96.053611
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.
7 pages, 6 figures, submitted
References in corpus (11)
- Strong dipolar effects in a quantum ferrofluid
- Dipole blockade in a cold Rydberg atomic sample
- Dynamical crystallization in a low-dimensional Rydberg gas
- A superfluid-droplet crystal and a free-space supersolid in a dipole-blockaded gas
- Designing Frustrated Quantum Magnets with Laser-Dressed Rydberg Atoms
- Localization phenomena in interacting Rydberg lattice gases with position disorder
- Spontaneous inhomogeneous phases in ultracold dipolar Fermi gases
- Exotic topological density waves in cold atomic Rydberg fermions
- Density wave instabilities of tilted fermionic dipoles in a multilayer geometry
- Zero-Temperature Equation of State and Phase Diagram of Repulsive Fermionic Mixtures
- Density-wave phases of dipolar fermions in a bilayer