Researchers at the National Institute of Standards and Technology (NIST) and the University of Colorado Boulder have carried out a study, recently featured in Physical Review Letters, aimed at testing the limits to universality in an ultracold system and at understanding the applicability and the robustness of universal physics.
Due to the few-body nature of interactions in most ultracold systems, researchers must attain a better knowledge of few-particle physics to better understand the complex many-body ultracold phenomena. The team honed in on exploring the limits to universality in a few-body universal phenomenon called Efimov physics. (Phys.org)