Weakly bound LiHe${}_2$ molecules in the framework of three-dimensional Faddeev equations

Abstract

A method of direct solution of the Faddeev equations for the bound-state problem with zero total angular momentum is used to calculate the binding energies. The results for binding energies of He${}_2$${}^6$Li and He${}_2$${}^7$Li systems and helium atom - HeLi dimer scattering length are presented. The results show that modern potential models support two bound states in both trimers. In both cases the energy of the excited state is very close to the energy of the lowest two-body threshold.

arXiv comment7 pages

References in corpus (17)

• Evidence for Efimov quantum states in an ultracold gas of cesium atoms
• Efimov Physics: a review
• Variational calculations of dispersion coefficients for interactions between H, He, and Li atoms
• Universal few-body physics and cluster formation
• Observation of the Efimov state of the helium trimer
• Observation of heteronuclear atomic Efimov resonances
• Geometric scaling of Efimov states in a ${}^6\text{Li}$-${}^{133}\text{Cs}$ mixture
• Observation of the Second Triatomic Resonance in Efimov's Scenario
• Tests of universal three-body physics in an ultracold Bose-Fermi mixture
• Universal three-body parameter in heteronuclear atomic systems
• Enhancing the Observability of the Efimov Effect in Ultracold Atomic Gas Mixtures
• Universal three-body physics in ultracold KRb mixtures
• The ^4He trimer as an Efimov system
• Universal three-body recombination and Efimov resonances in an ultracold Li-Cs mixture
• Benchmark helium dimer and trimer calculations with a public few-body code
• Finite-temperature effects on a triatomic Efimov resonance in ultracold cesium
• Determination of S-factors with the LIT method