Collisional loss of one-dimensional fermions near a $p$-wave Feshbach resonance

Abstract

We study collisional loss of a quasi-one-dimensional (1D) spin-polarized Fermi gas near a $p$-wave Feshbach resonance in ultracold ${}^6$Li atoms. We measure the location of the $p$-wave resonance in quasi-1D and observe a confinement-induced shift and broadening. We find that the three-body loss coefficient $L_3$ as a function of the quasi-1D confinement has little dependence on confinement strength. We also analyze the atom loss with a two-step cascade three-body loss model in which weakly bound dimers are formed prior to their loss arising from atom-dimer collisions. Our data are consistent with this model. We also find a possible suppression in the rate of dimer relaxation with strong quasi-1D confinement. We discuss the implications of these measurements for observing $p$-wave pairing in quasi-1D.

References in corpus (11)

• Weakly bound dimers of fermionic atoms
• Observation of antiferromagnetic correlations in the Hubbard model with ultracold atoms
• Resonantly-paired fermionic superfluids
• Collisional Properties of p-Wave Feshbach Molecules
• Binding Energies of 6Li p-wave Feshbach Molecules
• Resonant Scattering of Ultracold Atoms in Low Dimensions
• Two-body relaxation in a Fermi gas at a p-wave Feshbach resonance
• Stretching p-wave molecules by transverse confinements
• Methods for Preparing Quantum Gases of Lithium
• Quantitative analysis of $p$-wave three-body losses via cascade process
• Creation of p-wave Feshbach molecules in the selected angular momentum states using an optical lattice

Cited by in corpus (26)

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• In Situ Thermometry of Fermionic Cold-Atom Quantum Wires
• Non-Hermitian topological Fermi superfluid near the $p$-wave unitary limit
• Emergent s-wave interactions between identical fermions in quasi-one-dimensional geometries
• Stability against three-body clustering in one-dimensional spinless p-wave fermions
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• Transport in p-wave interacting Fermi gases
• Competition between pairing and tripling in one-dimensional fermions with coexistent s- and p-wave interactions
• Spin incoherent liquid and interaction-driven criticality in 1D Hubbard model
• Thermodynamic contacts and breathing mode physics of 1D p-wave Fermi gases in the high temperature limit
• Viscous Flow in a 1D Spin-Polarized Fermi Gas: the Role of Integrability on Viscosity
• Ultracold spin-balanced fermionic quantum liquids with renormalized $P$-wave interactions
• Non-Hermitian $p$-wave superfluid and effects of the inelastic three-body loss in a one-dimensional spin-polarized Fermi gas
• Universal composite boson formation in strongly interacting one-dimensional fermionic systems
• Three-body recombination in a single-component Fermi gas with $p$-wave interaction
• Cooper pairing and tripling in one-dimensional spinless fermions with attractive two- and three-body forces
• Radio-Frequency Spectroscopy and the Dimensional Crossover in Interacting Spin-Polarized Fermi Gases
• Pairing from repulsion in a two-dimensional Fermi gas with soft-core interactions
• Single Particle Spectroscopies of $p$-wave and $d$-wave Interacting Bose Gases in Normal Phase
• Efficient shortcuts-to-adiabaticity for loading an ultracold Fermi gas into higher orbital bands of one-dimensional optical lattice
• Efficient determination of eigenenergies and eigenstates of $N$ ($N=3$--$4$) identical 1D bosons and fermions under external harmonic confinement