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Microscopic derivation of the Fröhlich Hamiltonian for the Bose polaron in the mean-field limit


Date: Thursday, November 26, 2020 16:15 - 17:15
Speaker: Krzysztof Mysliwy (IST Austria)
Location: Online via Zoom
Series: Mathematics and CS Seminar
Host: Robert Seiringer

We consider the quantum mechanical many-body problem of a single impurity particleimmersed in a weakly interacting Bose gas. The impurity interacts with the bosons via atwo-body potential. We study the Hamiltonian of this systemin the mean-field limit andrigorously show that, at low energies, the problem is well described by the Fröhlich polaron model. In collaboration with Robert Seiringer.

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