24/08/15 15:30H Talk @ UFRJ – Prof. Sougato Bose – University College London


Two ways of probing the macroscopic limits of quantum mechanics


We describe two complementary ways of probing the macroscopic limits of quantum mechanics. The first is a way of probing the ability of complex quantum objects to behave as indistinguishable particles in an experiment. In particular, we point out a hitherto unnoticed dualism in the entanglement of identical particles and then show how this dualism can be exploited to design a scheme to test quantum indistinguishability unaffected by the mutual interactions of the particles. This opens up the way to test the indistinguishability of more complex objects that might strongly interact with each other. The other way of probing the limits of quantum mechanics is to probe the quantum superposition principle, on which there are extensive sets of experiments now. We propose a new experiment where the initial cooling and state preparation of a mesoscopic quantum object is not required, though it can probe the validity of the superposition principle for the object.

UFRJ- Centro de Tecnologia do Fundão, Bloco A, sala 343


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