Quantum Monte Carlo and perturbative study of two-dimensional Bose-Fermi mixtures
arXiv:2402.13664 · doi:10.1103/PhysRevA.109.053302
Abstract
We derive analytically the leading beyond-mean field contributions to the zero-temperature equation of state and to the fermionic quasi-particle residue and effective mass of a dilute Bose-Fermi mixture in two dimensions. In the repulsive case, we perform quantum Monte Carlo simulations for two representative bosonic concentrations and equal masses, extending a method for correcting finite-size effects in fermionic gases to Bose-Fermi mixtures. We find good agreement between analytic expressions and numerical results for weak interactions, while significant discrepancies appear in the regime close to mechanical instability, above which we provide evidence of phase separation of the bosonic component.
16 pages, 9 figures. Added appendix and changed title
References in corpus (57)
- Many-Body Physics with Ultracold Gases
- Feshbach Resonances in Ultracold Gases
- Ultracold atomic gases in optical lattices: mimicking condensed matter physics and beyond
- Theory of ultracold Fermi gases
- Atomic Scattering in Presence of an External Confinement and a Gas of Impenetrable Bosons
- Quantum liquid droplets in a mixture of Bose-Einstein condensates
- Self-bound quantum droplets in atomic mixtures
- Bose-Einstein condensation in quasi2D trapped gases
- Interatomic collisions in a tightly confined Bose gas
- Twist-averaged Boundary Conditions in Continuum Quantum Monte Carlo
- Extension of Bogoliubov theory to quasi-condensates
- Ultracold heteronuclear molecules in a 3D optical lattice
- Bose-Fermi Mixtures in a Three-dimensional Optical Lattice
- The BCS-BEC crossover: From ultra-cold Fermi gases to nuclear systems
- Confinement-Induced Resonances in Low-Dimensional Quantum Systems
- Zero-temperature phase diagram of binary boson-fermion mixtures
- Ultracold Fermionic Feshbach Molecules of NaK
- Evaporation of microwave-shielded polar molecules to quantum degeneracy
- BCS-BEC crossover in a two-dimensional Fermi gas
- Itinerant ferromagnetism of a repulsive atomic Fermi gas: a quantum Monte Carlo study
- Collisional stability of fermionic Feshbach molecules
- Structure and stability of trapped atomic boson-fermion mixtures
- Formation of Ultracold Fermionic NaLi Feshbach Molecules
- Strongly Interacting Isotopic Bose-Fermi Mixture Immersed in a Fermi Sea
- Supersolid Bose-Fermi Mixtures in Optical Lattices
- Ground-state properties of a dilute Bose-Fermi mixture
- Mean-field instability of trapped dilute boson-fermion mixtures
- Causality and the effective range expansion
- Ground state energy of the two-dimensional weakly interacting Bose gas: First correction beyond Bogoliubov theory
- Probing the Interface of a Phase-Separated State in a Repulsive Bose-Fermi Mixture
- Quantum field theory of dilute homogeneous Bose-Fermi-mixtures at zero temperature: general formalismand beyond mean-field corrections
- Engineering Superfluidity in Bose-Fermi Mixtures of Ultracold Atoms
- Stability and breakdown of Fermi polarons in a strongly interacting Fermi-Bose mixture
- Collective excitations in trapped boson-fermion mixtures: from demixing to collapse
- Quantum Monte Carlo Study of a Resonant Bose-Fermi Mixture
- Pairing and condensation in a resonant Bose-Fermi mixture
- Quantum Monte Carlo simulation of a two-dimensional Bose gas
- Stability Condition of a Strongly Interacting Boson-Fermion Mixture across an Inter-Species Feshbach Resonance
- Quantum phase transition in Bose-Fermi mixtures
- Dilute Bose gas in two dimensions: Density expansions and the Gross-Pitaevskii equation
- Competing Orders in two-dimensional Bose-Fermi mixtures
- Bose-Fermi Pair Correlations in Attractively Interacting Bose-Fermi Atomic Mixtures
- Quadratic diffusion Monte Carlo and pure estimators for atoms
- Feshbach molecule formation in a Bose-Fermi mixture
- Boson-Fermion pairing in Bose-Fermi mixtures on 1D optical lattices
- Low-dimensional weakly interacting Bose gases: non-universal equations of state
- Ground State Pressure and Energy Density of a Homogeneous Bose Gas in Two Dimensions
- Condensed phase of Bose-Fermi mixtures with a pairing interaction
- Quasiparticle Effective Mass of the Three-Dimensional Fermi Liquid by Quantum Monte Carlo
- Two-dimensional short-range interacting attractive and repulsive Fermi gases at zero temperature
- Stable p-wave resonant two-dimensional Fermi-Bose dimers
- Strongly interacting Bose-Fermi mixture: mediated interaction, phase diagram and sound propagation
- Universal and non-universal renormalizations in Fermi liquids
- Quantum Monte Carlo study of the role of p-wave interactions in ultracold repulsive Fermi gases
- Fermions in Two Dimensions: Scattering and Many-Body Properties
- Quantum Monte Carlo and perturbative study of two-dimensional Bose-Fermi mixtures
- Toward precision Fermi liquid theory in two dimensions