Eﬁmov states embedded in the three-body continuumPhysical Review A
AbstractWe present analytical solutions for the three-body problem with multichannel interactions and identify a class of quasibound Efimov states that can be viewed as three-body Fano-Feshbach resonances. Our method employs a multichannel generalization of the Fermi pseudopotential to model low-energy atom-atom interactions near a magnetically tunable Fano-Feshbach resonance. We discuss the conditions under which quasibound Efimov states may be supported and identify the interaction parameters that limit the lifetimes of these states. We speculate that it may be possible to observe these states using spectroscopic methods, perhaps allowing for the measurement of multiple Efimov resonances.
Document Object Identifier (DOI)10.1103/PhysRevA.78.020701
Citation InformationMehta, N., Seth Rittenhouse, J. D’Incao, and Chris Greene. 2008. “Efimov States Embedded in the Three-Body Continuum.” Physical Review A 78 (2): 020701. doi:10.1103/PhysRevA.78.020701.