Two-body relaxation in a Fermi gas at a p-wave Feshbach resonance

Abstract

We systematically studied the two-body loss in a two-component Fermi gas of ${}^6$Li atoms near a p-wave Feshbach resonance. The two-body loss rate constants were measured for various temperatures and magnetic fields using atoms trapped in three-dimensional and quasi-two-dimensional traps. Our results were nicely reproduced by a theoretical model that incorporates the two-body loss as an imaginary part to the inverse of the scattering volume in the scattering amplitude expression. The observed loss suppression in quasi-two-dimensional traps may provide a promising strategy to realize a p-wave superfluid in a system of ultracold atoms.

4 pages, 5 figures

References in corpus (8)

• Resonantly-paired fermionic superfluids
• p-wave Feshbach molecules
• Anisotropic Fermi Superfluid via p-wave Feshbach Resonance
• Collisional Properties of p-Wave Feshbach Molecules
• Binding Energies of 6Li p-wave Feshbach Molecules
• Stability of the fermionic gases close to a p-wave Feshbach resonance
• Resonant Scattering of Ultracold Atoms in Low Dimensions
• Creation of p-wave Feshbach molecules in the selected angular momentum states using an optical lattice

Cited by in corpus (19)

• Collisional loss of one-dimensional fermions near a $p$-wave Feshbach resonance
• Observation of unitary p-wave interactions between fermions in an optical lattice
• Quantitative analysis of $p$-wave three-body losses via cascade process
• Probing open- and closed-channel p-wave resonances
• Unitary $p$-wave Fermi gas in one dimension
• Non-Hermitian topological Fermi superfluid near the $p$-wave unitary limit
• Optical spin transport theory of spin-1/2 topological Fermi superfluids
• Emergent $s$-wave interactions in orbitally active quasi-two-dimensional Fermi gases
• Anomalous loss behavior in a single-component Fermi gas close to a $p$-Wave Feshbach resonance
• Temperature dependence of $p$-wave contacts in a harmonically trapped Fermi gas
• Precision Measurement of Spin-Dependent Dipolar Splitting in ${}^6$Li p-Wave Feshbach Resonances
• Cooper pairing and tripling in one-dimensional spinless fermions with attractive two- and three-body forces
• Three-body recombination in a single-component Fermi gas with $p$-wave interaction
• Pairing from repulsion in a two-dimensional Fermi gas with soft-core interactions
• Radio-Frequency Spectroscopy and the Dimensional Crossover in Interacting Spin-Polarized Fermi Gases
• Exact Thermodynamics For Weakly Interacting Normal-Phase Quantum Gases: Equations of State For All Partial Waves
• Resonance-facilitated three-channel p-wave scattering
• Efficient shortcuts-to-adiabaticity for loading an ultracold Fermi gas into higher orbital bands of one-dimensional optical lattice
• Elastic collision rates of spin-polarized fermions in two dimensions