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Seminario di Dipartimento: Probing Quantum Physics with Complex Molecules and Nanoparticles


Physics Department seminar
Aula Consiglio
21 NOVEMBRE, 2019 – 15:30
Markus Arndt
University of Vienna
Probing Quantum Physics with Complex Molecules and Nanoparticles

Quantum physics is the best-confirmed theory of nature and yet important questions have remained open: Why do we find unitary evolution in quantum mechanics but not in the macroscopic world we live in? What defines the cut between coherent superpositions of quantum states and seemingly irreversible
measurements? This question is guiding our research on quantum superposition and matter-wave interferometry with objects of increasing size and complexity. I will discuss how to see the quantum wave nature of fullerenes, vitamins, polypeptide and macromolecules even exceeding masses of 25'000
amu. In all experiments so far, quantum mechanics has been confirmed and shown to be distinct from a classical world view. I will discuss plans to upscale these studies using optomechanics experiments with silicon nanospheres and nanorods. They shall open new paths to exploring the limits of free-fall matterwave interference in an Earth based lab.

Students are cordially invited
Contact: silvia.leoni@mi.infn.it



21 novembre 2019
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