Few-body physics with ultracold atomic and molecular systems in traps

D Blume - Reports on Progress in Physics, 2012 - iopscience.iop.org
Few-body physics has played a prominent role in atomic, molecular and nuclear physics
since the early days of quantum mechanics. It is now possible—thanks to tremendous …

Universality of the unitary Fermi gas: a few-body perspective

J Levinsen, P Massignan, S Endo… - Journal of Physics B …, 2017 - iopscience.iop.org
We revisit the properties of the two-component Fermi gas with short-range interactions in
three dimensions, in the limit where the s-wave scattering length diverges. Such a unitary …

Few-body physics in resonantly interacting ultracold quantum gases

JP D'Incao - Journal of Physics B: Atomic, Molecular and Optical …, 2018 - iopscience.iop.org
We provide a general discussion on the importance of three-body Efimov physics for
strongly interacting ultracold quantum gases. Using the adiabatic hyperspherical …

Universal three-body parameter in heteronuclear atomic systems

Y Wang, J Wang, JP D'Incao, CH Greene - Physical review letters, 2012 - APS
In Efimov physics, a three-body parameter (3BP), previously regarded as nonuniversal,
uniquely defines bound and scattering properties of three particles. A universal 3BP …

Ultracold few-body systems

Y Wang, JP D'Incao, BD Esry - Advances in Atomic, Molecular, and Optical …, 2013 - Elsevier
Recent advances in controlling interatomic interactions, coupled with new techniques for
producing and interrogating exotic regimes in ultracold quantum gases, have resulted in the …

Three and four identical fermions near the unitary limit

MD Higgins, CH Greene - Physical Review A, 2022 - APS
This work analyzes the three and four equal-mass fermionic systems near and at the s-and p-
wave unitary limits using hyperspherical methods. The unitary regime addressed here is …

Few-body correlations in two-dimensional Bose and Fermi ultracold mixtures

G Bougas, SI Mistakidis, P Giannakeas… - New Journal of …, 2021 - iopscience.iop.org
Few-body correlations emerging in two-dimensional harmonically trapped mixtures, are
comprehensively investigated. The presence of the trap leads to the formation of atom-dimer …

Trimers in the resonant ()-fermion problem on a narrow Feshbach resonance: Crossover from Efimovian to hydrogenoid spectrum

Y Castin, E Tignone - Physical Review A—Atomic, Molecular, and Optical …, 2011 - APS
We study the quantum three-body free-space problem of two same-spin-state fermions of
mass m interacting with a different particle of mass M, on an infinitely narrow Feshbach …

Absence of a four-body Efimov effect in the fermionic problem

S Endo, Y Castin - Physical Review A, 2015 - APS
In the free three-dimensional space, we consider a pair of identical↑ fermions of some
species or in some internal state and a pair of identical↓ fermions of another species or in …

Interferometry of Efimov states in thermal gases by modulated magnetic fields

G Bougas, SI Mistakidis, P Schmelcher, CH Greene… - Physical Review …, 2023 - APS
We demonstrate that an interferometer based on modulated magnetic field pulses enables
precise characterization of the energies and lifetimes of Efimov trimers irrespective of the …