Dresden 2020 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 53: Poster: Quantum Dynamics, Chaos and Information; Many Body Systems

DY 53.21: Poster

Thursday, March 19, 2020, 15:00–18:00, P1A

Rydberg Composites — •Matthew Eiles, Andrew Hunter, Alexander Eisfeld, and Jan-Michael Rost — Max Planck Institute for the Physics of Complex Systems, 38 Noethnitzer Str. Dresden 01187

Rydberg states of atoms can be large enough that, in a dense cloud of ground state atoms, the electron can scatter off of many hundreds of impurities. Such a system, combining a Rydberg atom with a dense environment of localized scatterers, is called a Rydberg Composite. In conjunction with the high degeneracy of electronic states, the scattering from the localized impurities leads to a variety of heavily perturbed electronic states which, since the impurity atoms can be arranged in either crystalline or amorphous structures, shares many similarities with phenomena in solid-state materials. We will discuss some of these properties in this poster, for example the appearance of a band-like structure in the electronic density of states in a two-dimensional Composite and the existence of Anderson localization in a circular Composite.