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Q: Fachverband Quantenoptik und Photonik

Q 16: Quantum Effects I

Q 16.2: Talk

Tuesday, March 15, 2022, 10:45–11:00, Q-H13

Quantum friction near nonreciprocal media — •Omar Jesús Franca Santiago and Stefan Yoshi Buhmann — Institute of Physics, University of Kassel, Germany

We investigate how the quantum friction experienced by a polarisable charged particle moving with constant velocity parallel to a planar interface is modified when the latter consists of nonreciprocal media, with special focus on topological insulators. We use macroscopic quantum electrodynamics to obtain the Casimir--Polder frequency shift, decay rate and force for the atom. These results are a generalization of the respective quantities to matter with time-reversal symmetry breaking which violates the Lorentz reciprocity principle.