Drag in Bose-Fermi Mixtures
arXiv:2008.04083 · doi:10.1103/PhysRevA.103.033307
Abstract
We use kinetic theory to model the dynamics of a small Bose condensed cloud of heavy particles moving through a larger degenerate Fermi gas of light particles. Varying the Bose-Fermi interaction, we find a crossover between bulk and surface dominated regimes -- where scattering occurs throughout the Bose cloud, or solely on the surface. We calculate the damping and frequency shift of the dipole mode in a harmonic trap as a function of the magnetic field controlling an inter-species Feshbach resonance. We find excellent agreement between our stochastic model and the experimental studies of Cs-Li mixtures.
arXiv comment10 pages, 7 figures
References in corpus (21)
- Many-Body Physics with Ultracold Gases
- Feshbach Resonances in Ultracold Gases
- Nonequilibrium dynamics of closed interacting quantum systems
- Quantum many-body systems out of equilibrium
- Eigenstate Thermalization Hypothesis
- Critical Dynamics of Spontaneous Symmetry Breaking in a Homogeneous Bose gas
- Ultracold atoms out of equilibrium
- Bose-Fermi Mixtures in a Three-dimensional Optical Lattice
- Classical and quantum shortcuts to adiabaticity for scale-invariant driving
- Quantum transport in ultracold atoms
- Fermion-Mediated Interactions Between Bosonic Atoms
- Two-Element Mixture of Bose and Fermi Superfluids
- Dark state cooling of atoms by superfluid immersion
- Ultracold mixtures of atomic Li-6 and Cs-133 with tunable interactions
- Observation of a Degenerate Fermi Gas Trapped by a Bose-Einstein Condensate
- Probing the Interface of a Phase-Separated State in a Repulsive Bose-Fermi Mixture
- Degenerate Bose-Fermi mixtures of rubidium and ytterbium
- Quantum turbulence in quantum gases
- Collisional oscillations of trapped boson-fermion mixtures approaching collapse
- Comprehensive classification for Bose-Fermi mixtures
- BEC immersed in a Fermi sea: Theory of static and dynamic behavior across phase separation