Emergence of Metallic Quantum Solid Phase in a Rydberg-Dressed Fermi Gases
arXiv:1512.04079 · doi:10.1103/PhysRevLett.117.035301
Abstract
We examine possible low-temperature phases of a repulsively Rydberg-dressed Fermi gas in a three-dimensional free space. It is shown that the collective density excitations develop a roton minimum, which is softened at a wavevector smaller than the Fermi wavevector when the particle density is above a critical value. The mean field calculation shows that unlike the insulating charge density waves states often observed in conventional condensed matters, a self-assembled metallic density wave state emerges at low temperatures. In particular, the density wave state supports a Fermi surface and a body-center-cubic crystal order at the same time with the estimated critical temperature being about one-tenth of the non-interacting Fermi energy. Our results suggest the emergency of a fermionic quantum solid that should be observable in current experimental setup.
arXiv comment5 pages, 4 figures
References in corpus (22)
- Dipole Blockade and Quantum Information Processing in Mesoscopic Atomic Ensembles
- Fast quantum gates for neutral atoms
- Observation of Rydberg blockade between two atoms
- Observation of collective excitation of two individual atoms in the Rydberg blockade regime
- Observation of mesoscopic crystalline structures in a two-dimensional Rydberg gas
- Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential
- Cooperative optical non-linearity due to dipolar interactions in an ultra-cold Rydberg ensemble
- Cooperative atom-light interaction in a blockaded Rydberg ensemble
- Three-dimensional Roton-Excitations and Supersolid formation in Rydberg-excited Bose-Einstein Condensates
- Entangling Atomic Spins with a Strong Rydberg-Dressed Interaction
- Strongly correlated gases of Rydberg-dressed atoms: quantum and classical dynamics
- Consequences of Zeeman Degeneracy for van der Waals Blockade between Rydberg Atoms
- A superfluid-droplet crystal and a free-space supersolid in a dipole-blockaded gas
- Collective many-body interaction in Rydberg dressed atoms
- Rydberg dressing: Understanding of collective many-body effects and implications for experiments
- Rydberg-induced Solitons: Three-dimensional Self-trapping of Matter Waves
- Supersolid Vortex Crystals in Rydberg-dressed Bose-Einstein Condensates
- An echo experiment in a strongly interacting Rydberg gas
- Pomeranchuk and Topological Fermi Surface Instabilities from Central Interactions
- Exotic topological density waves in cold atomic Rydberg fermions
- P-wave Superfluidity by Blockade Effects in a Rydberg-Dressed Fermi Gas
- Elementary electronic excitations in one-dimensional continuum and lattice systems
Cited by in corpus (11)
- Quench Dynamics of a Fermi Gas with Strong Non-Local Interactions
- Rotons and Bose condensation in Rydberg-dressed Bose Gases
- Rydberg optical Feshbach resonances in cold gases
- Phase-diagram and dynamics of Rydberg-dressed fermions in two-dimensions
- -wave superfluidity from repulsive interaction in Rydberg-dressed Fermi gas
- Coupled rate-equation hydrodynamic simulation of a Rydberg gas Gaussian ellipsoid: Classical avalanche and evolution to molecular plasma
- Rydberg-dressed Fermi liquid: correlations and signatures of droplet crystallization
- Multipolar Fermi-surface deformation in a Rydberg-dressed Fermi gas with long-range anisotropic interactions
- Static density response of one-dimensional soft bosons across the clustering transition
- Evolution of static and dynamical density correlations in a one-dimensional soft-core gas from the Tonks-Girardeau limit to a clustering fluid
- Density and pseudo-spin rotons in a bilayer of soft-core bosons