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Johannes Fiedler

Molecular spectroscopy from far-field matter-wave interferometry

Universität Rostock, 2017

Abstract: We derive a model describing the Casimir-Polder interaction between a surface and an extended particle. This method can be used to explain matter-wave interference patterns of large organic molecules diffracting at a grating. We reconstruct the interaction from the interference pattern by additional measurements: the phase information encoded in the matter wave is mapped out by an implementation of Hartmann-Shack sensor for neutral matter waves. Together with tomographic reconstruction of the interaction potential, the polarisability of the interfering particle can be estimated.

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