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Q: Fachverband Quantenoptik und Photonik
Q 22: Nuclear and X-Ray Quantum Optics
Q 22.5: Vortrag
Dienstag, 3. März 2026, 12:15–12:30, P 11
Dynamics of x-ray waveguides in front-coupling geometry — •Julien Spitzlay1, Hanns Zimmermann1,2, and Adriana Pálffy1 — 1Julius-Maximilians-Universität Würzburg — 2Universität der Bundeswehr München
Thin-film nanostructures containing multiple embedded layers of Mössbauer nuclei offer an intriguing platform for realizing quantum optics in the x-ray regime. These structures can be probed either in grazing-incidence or front-coupling geometry. The latter was recently demonstrated experimentally [1] and showed excellent agreement with the theoretical framework developed so far [2].
In this work, we extend this formalism to model the mesoscopic quantum dynamics of x-ray waveguides in front-coupling geometry, including configurations with multiple modes and several layers of resonant material. This approach enables the engineering of effective inter-nuclear couplings to realize hopping models [2], thereby opening the door to investigating topological photonic systems of greater complexity than achievable in grazing-incidence configurations [3].
[1] L. Lohse, et. al., Phys. Rev. Lett. 135, 053601 (2025)
[2] P. Andrejić, et. al., Phys. Rev. A 109, 063702 (2024)
[3] H. Zimmermann, et. al., arXiv:2506.10588 (2025)
Keywords: X-Ray Quantum Optics; Thin-Film Nanostructures; Waveguide QED