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Q: Fachverband Quantenoptik und Photonik
Q 8: Quantum Gases (Bosons) II
Q 8.3: Talk
Monday, March 14, 2022, 17:00–17:15, Q-H10
Experimental realization of a 3D random hopping model — •Patrick Mischke, Carsten Lippe, Jana Bender, Tanita Klas, Thomas Niederprüm, and Herwig Ott — Department of Physics and research center OPTIMAS, Technische Universität Kaiserslautern, Germany
We present experimental results from a Rydberg system described by the XY-model Hamiltionian with random couplings.
While systems with disordered potentials have already been studied in detail, experimental investigations on systems with disordered hopping are still rare. Small amounts of disorder can dramatically change the transport properties of a system compared to the underlying simple model. We present an experimental study of a dipole–dipole-interacting three-dimensional Rydberg system described by the XY transport model for spin-1/2 particles ĤXY = ∑Jij/2 (σixσjx + σiy σjy) + ∑εi σiz. We observe spectroscopic agreement with theoretical models and discuss emerging localization phenomena.
The presented Rydberg platform allows for high control over the microscopic parameters and will allow to further study transport processes and localization phenomena in random hopping models.