Evaporative Cooling of a Two-Component Degenerate Fermi Gas
arXiv:cond-mat/9911017 · doi:10.1103/PhysRevA.61.053610
Abstract
We derive a quantum theory of evaporative cooling for a degenerate Fermi gas with two constituents and show that the optimum cooling trajectory is influenced significantly by the quantum statistics of the particles. The cooling efficiency is reduced at low temperatures due to Pauli blocking of available final states in each binary collision event. We compare the theoretical optimum trajectory with experimental data on cooling a quantum degenerate cloud of potassium-40, and show that temperatures as low as 0.3 times the Fermi temperature can now be achieved.
6 pages, 4 figures
References in corpus (4)
Cited by in corpus (60)
- Resonance superfluidity in a quantum degenerate Fermi gas
- A Quantum Gas Microscope for Fermionic Atoms
- Measurement of positive and negative scattering lengths in a Fermi gas of atoms
- Influence of Induced Interactions on the Superfluid Transition in Dilute Fermi Gases
- Superfluid pairing in a polarized dipolar Fermi gas
- Bragg spectroscopy of a strongly interacting Fermi gas
- Cooling in strongly correlated optical lattices: prospects and challenges
- Pauli Blocking of Collisions in a Quantum Degenerate Atomic Fermi Gas
- Effective Field Theory for Dilute Fermi Systems
- Cooling and thermometry of atomic Fermi gases
- Condensate growth in trapped Bose gases
- Thermometry with spin-dependent lattices
- Signatures of resonance superfluidity in a quantum Fermi gas
- Degenerate fermion gas heating by hole creation
- Hydrodynamic Excitations in a Spin-Polarized Fermi Gas under Harmonic Confinement in One Dimension
- Thermodynamics of Multi-Component Fermi Vapors
- Optimized production of large Bose Einstein Condensates
- Spin Excitations in a Fermi Gas of Atoms
- Enhancement and suppression of spontaneous emission and light scattering by quantum degeneracy
- Unitarity-Limited Elastic Collision Rate in a Harmonically-Trapped Fermi Gas
- Some exact results for a trapped quantum gas at finite temperature
- The BCS-Bose Crossover Theory
- Light scattering from a degenerate quasi-onedimensional confined gas of non-interacting fermions
- Cooling dynamics of ultracold two-species Fermi-Bose mixtures
- Adiabatic compression of a trapped Fermi gas
- Collisions in zero temperature Fermi gases
- Evaporative cooling of reactive polar molecules confined in a two-dimensional geometry
- Josephson effect in superfluid atomic Fermi-gases
- Kinetic energy functional for Fermi vapors in spherical harmonic confinement
- Limits of sympathetic cooling of fermions by zero temperature bosons due to particle losses
- Vortices in Trapped Superfluid Fermi-gases
- Exact first-order density matrix for a d-dimensional harmonically confined Fermi gas at finite temperature
- Cooper pairs as bosons
- Numerical modeling of collisional dynamics of Sr in an optical dipole trap
- Floquet Heating in Interacting Atomic Gases with an Oscillating Force
- Active Learning Approach to Optimization of Experimental Control
- Ground state fluctuations in finite Fermi and Bose systems
- Laser cooling of a trapped two-component Fermi gas
- Trapping radioactive ^{82}Rb in an optical dipole trap and evidence of spontaneous spin polarization
- Collisional cooling of ultra-cold atom ensembles using Feshbach resonances
- Laser Cooling of Trapped Fermi Gases deeply below the Fermi Temperature
- Exact results for a charged, harmonically trapped quantum gas at arbitrary temperature and magnetic field strength
- Manipulating the critical temperature for the superfluid phase transition in trapped atomic Fermi gases
- Thermodynamical approaches to efficient sympathetic cooling in ultracold Fermi-Bose atomic mixtures
- Quasiparticle spectrum and dynamical stability of an atomic Bose-Einstein condensate coupled to a degenerate Fermi gas
- Effective microscopic models for sympathetic cooling of atomic gases
- Exact ground state number fluctuations of trapped ideal and interacting fermions
- Endpoint thermodynamics of an atomic Fermi gas subject to a Feshbach resonance
- Stability of Trapped Ultracold Fermi Gases Using Effective s- and p-Wave Contact-Interactions
- Production of a highly degenerate Fermi gas of metastable helium-3 atoms
- Condensation in ideal Fermi gases
- Mitigating Heating of Degenerate Fermions in a Ring-Dimple Atomic Trap
- Stabilization of the number of Bose-Einstein condensed atoms in evaporative cooling via three-body recombination loss
- All-optical cooling of Fermi gases via Pauli inhibition of spontaneous emission
- Sympathetic cooling of trapped fermions by bosons in the presence of particle losses
- Density functional theory of the trapped Fermi gas in the unitary regime
- Cooper-pair coherence in a superfluid Fermi-gas of atoms
- Fundamental Limits of Feedback Cooling Ultracold Atomic Gases
- On the spin asymmetry of ground states in trapped two-component Fermi gases with repulsive interactions
- Theory of output coupling for trapped fermionic atoms