Mixture of bosonic and spin-polarized fermionic atoms in an optical lattice

Abstract

We investigate the properties of trapped Bose-Fermi mixtures for experimentally relevant parameters in one dimension. The effect of the attractive Bose-Fermi interaction onto the bosons is to deepen the parabolic trapping potential, and to reduce the bosonic repulsion in higher order, leading to an increase in bosonic coherence. The opposite effect was observed in ${}^{87}$Rb - ${}^{40}$K experiments, most likely due to a sharp rise in temperature. We also discuss low-temperature features, such as a bosonic Mott insulator transition driven by the fermion concentration, and the formation of composite particles such as polarons and molecules.

arXiv comment4 pages, 5 figures

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Cited by in corpus (44)

• One dimensional Bosons: From Condensed Matter Systems to Ultracold Gases
• Fermi gases in one dimension: From Bethe Ansatz to experiments
• Non-standard Hubbard models in optical lattices: a review
• Few-body Bose gases in low dimensions -- a laboratory for quantum dynamics
• Self-Trapping of Bosons and Fermions in Optical Lattices
• Temperature changes when adiabatically ramping up an optical lattice
• Pairing and condensation in a resonant Bose-Fermi mixture
• Mass imbalance effect in resonant Bose-Fermi mixtures
• Demixing Effects in Mixtures of Two Bosonic Species
• Multi-band and nonlinear hopping corrections to the 3D Bose-Fermi Hubbard model
• Do mixtures of bosonic and fermionic atoms adiabatically heat up in optical lattices?
• Exact solution of the Bose Hubbard model with unidirectional hopping
• Supersolidity of cold-atom Bose-Fermi mixtures in optical lattices
• Finite-Temperature Auxiliary-Field Quantum Monte Carlo for Bose-Fermi Mixtures
• From the Cooper problem to canted supersolids in Bose-Fermi mixtures
• Quantum-entanglement aspects of polaron systems
• Superfluid and Mott Insulator phases of one-dimensional Bose-Fermi mixtures
• Generalized Dynamical Mean-Field Theory for Bose-Fermi Mixtures in Optical Lattices
• Mean-field phase diagram of the Bose-Fermi Hubbard model
• Condensed phase of Bose-Fermi mixtures with a pairing interaction
• Effect of interactions on harmonically confined Bose-Fermi mixtures in optical lattices
• Superfluid-insulator transition in Fermi-Bose mixtures and the orthogonality catastrophe
• Loss of superfluidity by fermions in the boson Hubbard model on an optical lattice
• Competition of superfluidity and density waves in one-dimensional Bose-Fermi mixtures
• Binding between two-component bosons in one dimension
• Supersolid-Superfluid phase separation in the extended Bose-Hubbard model
• Quantum Monte Carlo study of the visibility of one-dimensional Bose-Fermi mixtures
• Dynamical mean-field theory for light fermion--heavy boson mixtures on optical lattices
• Effects of a dilute gas of fermions on the superfluid-insulator phase diagram of the Bose-Hubbard model
• Boson Hubbard model with weakly coupled Fermions
• Exotic Superconductivity Through Bosons in a Dynamical Cluster Approximation
• Dissipative Effects on the Superfluid to Insulator Transition in Mixed-dimensional Optical Lattices
• Mixtures of correlated bosons and fermions: Dynamical mean-field theory for normal and condensed phases
• Optical lattices as a tool to study defect-induced superfluidity
• Bose-Fermi mixtures in the molecular limit
• Quantum Monte Carlo simulation of three-dimensional Bose-Fermi mixtures
• Interaction dependent temperature effects in Bose-Fermi mixtures in optical lattices
• Heteronuclear quantum gas mixtures
• The Role of Interspecies Interactions in the Preparation of a Low-entropy Gas of Polar Molecules in a Lattice
• Boson-fermion pairing and condensation in two-dimensional Bose-Fermi mixtures
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• Correlation Effects in a Trapped Bose-Fermi Mixture: Exact Results