Fermi gas approach to general rank theories and quantum curves
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep10(2020)158
Abstract: Abstract It is known that matrix models computing the partition functions of three-dimensional $$ \mathcal{N} $$ N = 4 superconformal Chern-Simons theories described by circular quiver diagrams can be written as the partition functions of… read more here.
Keywords: quantum curves; fermi gas; partition functions; approach ... See more keywords
Cavity-assisted preparation and detection of a unitary Fermi gas
Sign Up to like & getrecommendations! Published in 2020 at "New Journal of Physics"
DOI: 10.1088/1367-2630/abeb91
Abstract: We report on the fast production and weakly destructive detection of a Fermi gas with tunable interactions in a high finesse cavity. The cavity is used both with far off-resonant light to create a deep… read more here.
Keywords: detection; cavity; fermi; fermi gas ... See more keywords
Spin-polarized droplets in the unitary Fermi gas
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.033613
Abstract: We demonstrate the existence of a new type of spatially localized excitations in the unitary Fermi gas: spin polarized droplets with a peculiar internal structure involving the abrupt change of the pairing phase at the… read more here.
Keywords: fermi gas; spin polarized; unitary fermi; polarized droplets ... See more keywords
Role of the confinement-induced effective range in the thermodynamics of a strongly correlated Fermi gas in two dimensions
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review A"
DOI: 10.1103/physreva.101.013605
Abstract: We theoretically investigate the thermodynamic properties of a strongly correlated two-dimensional Fermi gas with a confinement-induced negative effective range of interactions, which is described by a two-channel model Hamiltonian. By extending the many-body T-matrix approach… read more here.
Keywords: strongly correlated; effective range; range; fermi gas ... See more keywords
Dissipative superfluid hydrodynamics for the unitary Fermi gas
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review A"
DOI: 10.1103/physreva.104.023313
Abstract: Jiaxun Hou and Thomas Schäfer Department of Physics, North Carolina State University, Raleigh, NC 27695 Abstract In this work we establish constraints on the temperature dependence of the shear viscosity η in the superfluid phase… read more here.
Keywords: gas; dissipative superfluid; hydrodynamics; fermi gas ... See more keywords
Anomalous loss behavior in a single-component Fermi gas close to a p -wave Feshbach resonance
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review A"
DOI: 10.1103/physreva.107.053310
Abstract: We theoretically investigate three-body losses in a single-component Fermi gas near a $p$-wave Feshbach resonance in the interacting, non-unitary regime. We extend the cascade model introduced by Waseem \textit{et al.} [M. Waseem, J. Yoshida, T.… read more here.
Keywords: component fermi; feshbach resonance; loss; wave feshbach ... See more keywords
Larkin-Ovchinnikov superfluidity in a two-dimensional imbalanced atomic Fermi gas
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.95.013603
Abstract: We present an extensive study of two-dimensional Larkin-Ovchinnikov (LO) superfluidity in a spin-imbalanced two-component atomic Fermi gas. In the context of Fulde-Ferrell-Larkin- Ovchinnikov (FFLO) phase, we explore a wide and generic class of pairing gap… read more here.
Keywords: superfluidity; phase; fermi gas; larkin ovchinnikov ... See more keywords
Local photoemission spectra and effects of spatial inhomogeneity in the BCS-BEC-crossover regime of a trapped ultracold Fermi gas
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.95.053623
Abstract: We theoretically investigate single particle excitations in the BCS (Bardeen-Cooper-Schrieffer)-BEC (Bose-Einstein-Condensation) crossover regime of an ultracold Fermi gas. Including strong pairing fluctuations within a $T$-matrix approximation, as well as effects of a harmonic trap potential… read more here.
Keywords: crossover; ultracold fermi; fermi; fermi gas ... See more keywords
Pure Goldstone mode in the quench dynamics of a confined ultracold Fermi gas in the BCS-BEC crossover regime
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.033618
Abstract: We present a numerical study of a confined ultracold Fermi gas showing that the Goldstone mode of the BCS gap is directly visible in the dynamics of the single-particle excitations. To this end, we investigate… read more here.
Keywords: fermi gas; confined ultracold; gas; goldstone mode ... See more keywords
Two-body relaxation in a Fermi gas at a p -wave Feshbach resonance
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.062704
Abstract: We systematically studied the two-body loss in a two-component Fermi gas of $^6$Li atoms near a p-wave Feshbach resonance. The two-body loss rate constants were measured for various temperatures and magnetic fields using atoms trapped… read more here.
Keywords: loss; wave feshbach; fermi gas; two body ... See more keywords
Low-momentum dynamic structure factor of a strongly interacting Fermi gas at finite temperature: A two-fluid hydrodynamic description
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.97.023615
Abstract: We provide a description of the dynamic structure factor of a homogeneous unitary Fermi gas at low momentum and low frequency, based on the dissipative two-fluid hydrodynamic theory. The viscous relaxation time is estimated and… read more here.
Keywords: structure factor; dynamic structure; fermi gas; momentum ... See more keywords