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Q: Fachverband Quantenoptik und Photonik
Q 11: QED and Cavity QED
Q 11.8: Talk
Monday, March 10, 2025, 18:45–19:00, HS Botanik
Quantum friction near chiral media — •Omar Jesus Franca Santiago1, Stefan Yoshi Buhmann1, Fabian Spallek1, Steffen Giesen2, Robert Berger2, Kilian Singer1, and Stefan Aull1 — 1Institute of Physics, Uni- versity of Kassel, Germany — 2University of Marburg
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 a chiral medium. We use macroscopic quantum electrodynamics to obtain the Casimir–Polder frequency shift and decay rate. These results are a generalization of the respective quantities to matter with parity symmetry breaking. We illustrate our findings by examining the nonretarded and retarded limits for three examples: a perfectly conducting mirror, a perfectly reflecting chiral mirror and an isotropic chiral medium. We also discuss the importance of the symmetries in these examples in the framework of Curie’s principle.
[1] Stefan Yoshi Buhmann, David T. Butcher and Stefan Scheel. New Journal of Physics 14, 083034 (2012).
[2] David T. Butcher, Stefan Yoshi Buhmann, Stefan Scheel, New Journal of Physics 14, 113013 (2012).
[3] O. J. Franca, Fabian Spallek, Steffen Giesen, Robert Berger, Kilian Singer, Stefan Aull, and Stefan Yoshi Buhmann. arXiv: 2412.18044 [quant-ph].
Keywords: Quantum friction; Chiral media; Macroscopic quantum electrodynamics; Dipole approximation; Casimir-Polder