Recent studies using the adiabatic hyperspherical representation have helped to provide an understanding of the universal three-body parameter for both homonuclear and heteronuclear systems characterized by van der Waals plus short-range interactions. This talk will discuss the current state of theoretical analyses of this important aspect of the universal Efimov effect, and what has been...
Prof.Lev Khaykovich(Department of Physics, Bar Ilan University, Ramat Gan, 52900 Israel)
14/10/2014 09:40
In my talk I shall overview our experimental studies of the three-body recombination process in a gas of ultracold lithium atoms. In the regime of resonant interatomic interactions we identify the characteristic features of Efimov trimers [1]. In the opposite regime of vanishingly weak interactions, where no universal bound states are expected, we discover a surprisingly simple behavior. We...
The three-body recombination rates in cold atomic gases typically exhibit certain universal features --- often referred to as Efimov physics --- which can be described within a model-independent theory using only very few of the low-energy parameters of the inter-atomic interactions.
In this contribution we specifically consider recombination into expressly non-universal deep dimers. Even...
Three particles resonantly interacting via short-range pairwise interactions experience the Efimov attraction which can bind them in an infinite series of three-body bound states. This phenomenon is well described in the zero-range theory, but this theory requires the introduction of a three-body parameter.
In this talk, I address the microscopic mechanism determining the three-body...
