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Few-body physics in resonantly interacting ultracold quantum gases

TitleFew-body physics in resonantly interacting ultracold quantum gases
Publication TypeJournal Article
Year of Publication2018
AuthorsD'Incao, J
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Date Published2018-01

We provide a general discussion on the importance of three-body Efimov physics for strongly interacting ultracold quantum gases. Using the adiabatic hyperspherical representation, we discuss a universal classification of three-body systems in terms of the attractive or repulsive character of the effective interactions. The hyperspherical representation leads to a simple and conceptually clear picture for the bound and scattering properties of three-body systems with strong s-wave interactions. Using our universal classification scheme, we present a detailed discussion of all relevant ultracold three-body scattering processes using a pathway analysis that makes evident the importance of Efimov physics in determining the energy and scattering length dependence of such processes. This article provides a general overview of the current status of the field and a discussion of various issues relevant to the lifetime and stability of ultracold quantum gases along with universal properties of ultracold, resonantly interacting, few-body systems.

Short TitleJ. Phys. B: At. Mol. Opt. Phys.