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On Wednesday, November 30, 2 pm (s.t.) there will be a talk by George Bougas (Hamburg Uni­ver­si­ty) on:

Title: Dynamical Association of Efimov Trimers and Atom-Dimers in Cold Gases
Abstract: Properties of Efimov states, that is three-body bound states, are typically measured indirectly through recombination mechanisms, which are ubiquitous in cold gases. Here, a dynamical protocol is investigated allowing for a more controlled probing of these states. In particular, pulses of the scattering length are employed to create a superposition of Efimov trimers and atom-dimers in cold gases, similar to Ramsey spectroscopy. This scheme allows the observation of both the energies and lifetimes of Efimov states, by measuring the remaining fraction of atoms during the free evolution time between the pulses. It is predicted that the mixing of states provided by the second pulse will lead to a measurement of twice the intrinsic lifetime of the Efimov states.
Venue: Philosophenweg 12, kHS (small lecture hall) and online via Zoom.

The talk will be hosted by Prof. Richard Schmidt (ITP). The STRUC­TURES Project Management Office is happy to answer questions.