Related papers: Spin-polarized fermions with $p$-wave interactions

Spin-polarized fermions with $p$-wave interactions

URL: http://arxiv.org/abs/2009.05913v1
Date: Sun, 13 Sep 2020 04:05:36 GMT
Title: Spin-polarized fermions with $p$-wave interactions
Authors: Furkan \c{C}a\u{g}r{\i} Top (1), Yair Margalit (1), Wolfgang Ketterle (1) ((1) Research Laboratory of Electronics, MIT-Harvard Center for Ultracold Atoms, and Department of Physics, Massachusetts Institute of Technology)
Abstract summary: We study quantum degenerate Fermi gases of $6$Li atoms at high densities ($1015$ cm$-3$) We observe elastic and inelastic $p$-wave collisions far away from any Feshbach resonance.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We study quantum degenerate Fermi gases of ${^6}$Li atoms at high densities ($10^{15}$ cm$^{-3}$) and observe elastic and inelastic $p$-wave collisions far away from any Feshbach resonance. $P$-wave evaporation reaches temperatures of $T/T_F=0.42$ partially limited by the slow transfer of energy from high to low velocities through $p$-wave collisions. Via cross-dimensional thermalization, the $p$-wave background scattering volume is determined to be $\lvert V_p \rvert =(39^{+1.3}_{-1.6}a_0)^3$. $P$-wave dipolar relaxation creates a metastable mixture of the lowest and highest hyperfine states.

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