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Collapse models and the challenge to the quantum superposition principle: an update.

Angelo Bassi
Institution: 
University of Trieste
Schedule: 
Wednesday, May 31, 2017 - 11:15
Location: 
A-136
Abstract: 

Models of spontaneous wave function collapse (collapse models) modify the Schrödinger equation by including nonlinear and stochastic terms, which describe the collapse of the wave function in space. These spontaneous collapses are “rare” for microscopic systems, hence their quantum properties are left almost unaltered. At the same time, they become more and more frequent, the larger the object, to the point that macroscopic superpositions are rapidly suppressed. I will briefly review the main features of collapse models. Next I will present an update of the most promising ways of testing them, focussing on recent updates from non-interferometric tests and optomechanics.

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