Experimental realization of a 3D random hopping model
Carsten Lippe,
Tanita Klas,
Jana Bender,
Patrick Mischke,
Thomas Niederprüm and
Herwig Ott ()
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Carsten Lippe: Technische Universität Kaiserslautern
Tanita Klas: Technische Universität Kaiserslautern
Jana Bender: Technische Universität Kaiserslautern
Patrick Mischke: Technische Universität Kaiserslautern
Thomas Niederprüm: Technische Universität Kaiserslautern
Herwig Ott: Technische Universität Kaiserslautern
Nature Communications, 2021, vol. 12, issue 1, 1-7
Abstract:
Abstract Scientific advance is often driven by identifying conceptually simple models underlying complex phenomena. This process commonly ignores imperfections which, however, might give rise to non-trivial collective behavior. For example, already a small amount of disorder can dramatically change the transport properties of a system compared to the underlying simple model. While systems with disordered potentials were already studied in detail, experimental investigations on systems with disordered hopping are still in its infancy. To this end, we experimentally study a dipole–dipole-interacting three-dimensional Rydberg system and map it onto a simple XY model with random couplings by spectroscopic evidence. We discuss the localization–delocalization crossover emerging in the model and present experimental signatures of it. Our results demonstrate that Rydberg systems are a useful platform to study random hopping models with the ability to access the microscopic degrees of freedom. This will allow to study transport processes and localization phenomena in random hopping models with a high level of control.
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-27243-2
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DOI: 10.1038/s41467-021-27243-2
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