Efimov physics implications at $p$-wave fermionic unitarity

Abstract

Efimov physics at $p$-wave unitarity for three equal mass fermions in multiple symmetries interacting via Lennard-Jones potentials is predicted to modify the long range interaction potential energy, but without producing a true Efimov effect. This analysis treats the following total orbital angular momenta and parities, $J^{\Pi }=0^{+},1^{+},1^{-}$ and $2^{-}$, for either three spin-polarized fermions ($\uparrow \uparrow \uparrow$), or two spin-up and one spin-down fermion ($\downarrow \uparrow \uparrow$). Our results for the long range interaction in some of those cases agree with previous work by Werner and Castin and by Blume {\it et al.}, namely in cases where the $s$-wave scattering length goes to infinity. The present results extend those calculated interaction energies to small and intermediate hyperradii comparable to the van der Waals length, and we consider additional unitarity scenarios where the $p$-wave scattering volume approaches infinity. The crucial role of the diagonal hyperradial adiabatic correction term is identified and characterized.

15 pages,25 figures

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Cited by in corpus (4)

• Three and four identical fermions near the unitary limit
• Universal trimers with p-wave interactions and the faux-Efimov effect
• Observability of modified threshold behavior near unitarity
• Efficient determination of eigenenergies and eigenstates of $N$ ($N=3$--$4$) identical 1D bosons and fermions under external harmonic confinement