Monday, 5 DEC, VCQ Colloquium Talk by Ron Folman

We are glad to introduce  

Prof. Ron Folman

(Ben-Gurion University)

Monday, 5th December 2022 at 17:00

Lise-Meitner Lecture Hall, Boltzmanngasse 5, 1090 Vienna

Realization of a complete Stern-Gerlach interferometer: Towards a test of quantum gravity

The Stern-Gerlach effect, found a century ago, has become a paradigm of quantum mechanics. Unexpectedly, until recently, there has been little evidence that the original scheme with freely propagating atoms exposed to gradients from macroscopic magnets is a fully coherent quantum process. Several theoretical studies have explained why a Stern-Gerlach interferometer is a formidable challenge. Here, we provide a detailed account of the realization of a full-loop Stern-Gerlach interferometer for single atoms and use the acquired understanding to show how this setup may be used to realize an interferometer for macroscopic objects doped with a single spin. Such a realization would open the door to a new era of fundamental probes, including the realization of previously inaccessible tests at the interface of quantum mechanics and gravity.

Host: Jörg Schmiedmayer

For further information and the zoom link please visit:

The lecture series is organized by the Vienna Center for Quantum Science and Technology (VCQ)


17:00 – get-together with drinks & snacks

17:30 – VCQ Student Talk by Federica Cataldini (Atominstitut) “Emergent Pauli blocking in a weakly interacting Bose gas”

17:45 – Colloquium talk by Prof. Folman

After the colloquium, Punsch & Maroni will be served!  

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