Tetramers of two heavy and two light bosons
arXiv:1802.06237 · doi:10.1007/s00601-018-1382-y
Abstract
This article considers the bound states of two heavy and two light bosons, when a short-range force attracts the bosons of different mass, and a short-range force repel the light bosons. The existence of such four-body bound states results from the competition between these two forces. For a given strength of the attraction, the critical strength of the repulsion necessary to unbind the four particles is calculated. This study is motivated by the experimental realisation of impurity atoms immersed in an atomic Bose-Einstein condensate, and aims at determining in which regime only one boson contributes to binding two impurities.
8 pages, 5 figures
References in corpus (9)
- Evidence for Universal Four-Body States Tied to an Efimov Trimer
- Universal Properties of the Four-Body System with Large Scattering Length
- Efimov Physics in Cold Atoms
- Four-boson scale near a Feshbach resonance
- Five-Body Efimov Effect and Universal Pentamer in Fermionic Mixtures
- Generalized Efimov scenario for heavy-light mixtures
- Universal bosonic tetramers of dimer-atom-atom structure
- Tetramer Bound States in Heteronuclear Systems
- Trimer and Tetramer Bound States in Heteronuclear Systems