Harmonically trapped fermions in two dimensions: ground-state energy and contact of SU(2) and SU(4) systems via nonuniform lattice Monte Carlo
arXiv:1510.02980 · doi:10.1103/PhysRevA.93.033604
Abstract
We study harmonically trapped, unpolarized fermion systems with attractive interactions in two spatial dimensions with spin degeneracies Nf = 2 and 4 and N/Nf = 1, 3, 5, and 7 particles per flavor. We carry out our calculations using our recently proposed quantum Monte Carlo method on a nonuniform lattice. We report on the ground-state energy and contact for a range of couplings, as determined by the binding energy of the two-body system, and show explicitly how the physics of the Nf-body sector dominates as the coupling is increased.
5 pages, 4 figures
References in corpus (53)
- Large momentum part of fermions with large scattering length
- Energetics of a strongly correlated Fermi gas
- Attractive and repulsive Fermi polarons in two dimensions
- Generalized Virial Theorem and Pressure Relation for a strongly correlated Fermi gas
- From Few to Many: Observing the Formation of a Fermi Sea One Atom at a Time
- Ultracold Fermi Gases with Emergent SU(N) Symmetry
- Exact Relations for a Strongly-interacting Fermi Gas from the Operator Product Expansion
- Lattice simulations for few- and many-body systems
- Observation of a pairing pseudogap in a two-dimensional Fermi gas
- Radiofrequency spectroscopy of a strongly interacting two-dimensional Fermi gas
- Observation of a two-dimensional Fermi gas of atoms
- General relations for quantum gases in two and three dimensions. Two-component fermions
- Evolution of Fermion Pairing from Three to Two Dimensions
- Observation of the Berezinskii-Kosterlitz-Thouless Phase Transition in an Ultracold Fermi Gas
- Observation of pair condensation in the quasi-2D BEC-BCS crossover
- BCS-BEC crossover in a two-dimensional Fermi gas
- Polarons in the radio-frequency spectrum of a quasi-two-dimensional Fermi gas
- Scale invariance and viscosity of a two-dimensional Fermi gas
- Crossover from 2D to 3D in a weakly interacting Fermi gas
- Ground-state pressure of quasi-2D Fermi and Bose gases
- Equation of State of Ultracold Fermions in the 2D BEC-BCS Crossover Region
- Virial expansion for a strongly correlated Fermi system and its application to ultracold atomic Fermi gases
- Short-Time Operator Product Expansion for rf Spectroscopy of a Strongly-interacting Fermi Gas
- Thermodynamics of an attractive 2D Fermi gas
- Exact Numerical Results on the Ground State of Strongly Interacting Fermi Gases in Two Dimensions
- Strongly interacting two-dimensional Fermi gases
- Universal equation of state and pseudogap in the two-dimensional Fermi gas
- Spin-Imbalanced Quasi-Two-Dimensional Fermi Gases
- Pressure, compressibility, and contact of the two-dimensional attractive Fermi gas
- Momentum Distribution and Contact of the Unitary Fermi gas
- Bound States in one and two Spatial Dimensions
- Exact few-body results for strongly correlated quantum gases in two dimensions
- Virial theorems for trapped cold atoms
- Universal relations for the two-dimensional spin-1/2 Fermi gas with contact interactions
- Universal properties of Fermi gases in arbitrary dimensions
- The ground state energy at unitarity
- Lattice methods for strongly interacting many-body systems
- Pair Correlations in the Two-Dimensional Fermi Gas
- A two-dimensional Fermi liquid with attractive interactions
- Scale breaking and fluid dynamics in a dilute two-dimensional Fermi gas
- Clock shift in a strongly interacting two-dimensional Fermi gas
- Density distribution of a trapped two-dimensional strongly interacting Fermi gas
- Pairing effects in the non-degenerate limit of the two-dimensional Fermi gas
- Three s-wave interacting fermions under anisotropic harmonic confinement: Dimensional crossover of energetics and virial coefficients
- BCS-BEC Crossover of a Quasi-two-dimensional Fermi Gas: the Significance of Dressed Molecules
- Shear viscosity and spin diffusion in a two-dimensional Fermi gas
- Collective modes of a two-dimensional spin-1/2 Fermi gas in a harmonic trap
- Large-N droplets in two dimensions
- Comparison of strong-coupling theories for a two-dimensional Fermi gas
- Radio frequency spectra of Feshbach molecules in quasi-two dimensional geometries
- Energy, contact, and density profiles of one-dimensional fermions in a harmonic trap via non-uniform lattice Monte Carlo
- Damping of the quadrupole mode in a two-dimensional Fermi gas
- Stability of three-fermion clusters with finite range of attraction
Cited by in corpus (7)
- Visualizing the BEC-BCS crossover in the two-dimensional Fermi gas: pairing gaps and dynamical response functions from ab initio computations
- Core structure of two-dimensional Fermi gas vortices in the BEC-BCS crossover region
- Thermodynamics of one-dimensional SU(4) and SU(6) fermions with attractive interactions
- Thermodynamics of rotating quantum matter in the virial expansion
- Are smooth pseudopotentials a good choice for representing short-range interactions?
- Efficiency at maximum power of thermoelectric heat engines with the symmetric semiconductor superlattice
- Few-to-many-particle crossover of pair excitations in a superfluid