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Q: Fachverband Quantenoptik und Photonik

Q 71: Cavity QED and QED II

Q 71.3: Vortrag

Freitag, 6. März 2026, 11:30–11:45, P 4

Towards x-ray quantum optics using periodically structured cavities — •Robert Horn and Jörg Evers — Max-Planck-Institut für Kernphysik, Heidelberg, Germany

Due to their narrow linewidth, Mössbauer nuclei, such as ⁵⁷Fe, have become an important platform for studying the nature of photons in the hard x-ray regime. These nuclei not only serve as potential nuclear clocks but also emerge as promising candidates for x-ray quantum dynamics. A typical environment for studying quantum optical effects in the linear x-ray regime is that of a thin-film cavity with embedded Mössbauer nuclei probed at grazing incidence. A recently developed ab initio approach using the electromagnetic Green’s tensor provides a robust theoretical and numerically efficient framework for describing this setup.

In this project, we propose a modified setup that breaks the system’s translational symmetry along the wave-propagation direction by introducing a periodic spacing of the nuclei. Our aim is to investigate the emergence of additional scattering channels and the correlations between them, as well as to compute the corresponding reflection and transmission spectra.

Keywords: x-ray quantum optics; cavity QED; Mössbauer nuclei; macroscopic QED