Thermal equilibrium and efficient evaporation of an ultracold atom-molecule mixture

Abstract

We derive the equilibrium conditions for a thermal atom-molecule mixture near a Feshbach resonance. Under the assumption of low collisional loss, thermodynamical properties are calculated and compared to the measurements of a recent experiment on fermionic lithium experiment. We discuss and evaluate possible collision mechanisms which can lead to atom-molecule conversion. Finally, we propose a novel evaporative cooling scheme to efficiently cool the molecules toward Bose-Einstein condensation.

References in corpus (3)

• Observation of Bose-Einstein Condensation of Molecules
• Pure Gas of Optically Trapped Molecules Created from Fermionic Atoms
• Observation of molecules produced from a Bose-Einstein condensate

Cited by in corpus (13)

• Atom-Dimer Scattering in a Three-Component Fermi Gas
• Efficient creation of molecules from a cesium Bose-Einstein condensate
• Connecting few-body inelastic decay to many-body correlations: a weakly coupled impurity in a resonant Fermi gas
• Observation of Chemical Reactions between a Trapped Ion and Ultracold Feshbach Dimers
• Many-body Chemical Reactions in a Quantum Degenerate Gas
• Molecular Bose-Einstein condensation in a versatile low power crossed dipole trap
• Exploring emergent heterogeneous phases in strongly repulsive Fermi gases
• Dynamics of Feshbach Molecules in an Ultracold Three-Component Mixture
• Experimental setup for studying an ultracold mixture of trapped Yb${}^{+}$-${}^6$Li
• Adiabatic cooling of a tunable Bose-Fermi mixture in an optical lattice
• Molecular formations in ultracold mixtures of interacting and noninteracting atomic gases
• Statistical mechanics of a Feshbach coupled Bose-Fermi gas in an optical lattice
• Optically trapped Feshbach molecules of fermionic ${}^{161}$Dy and ${}^{40}$K: Role of light-induced and collisional losses