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Updated: Nov 21, 2025

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Published on: May 21, 2016
Collisional Loss of One-Dimensional Fermions Near a p-Wave Feshbach Resonance
Ya-Ting Chang1, Ruwan Senaratne1, Danyel Cavazos-Cavazos1
1Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA.
Abstract:
We study collisional loss of a quasi-one-dimensional 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.
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