Bonn 2025 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 26: Poster – Precision Measurement, Metrology, and Quantum Effects

Q 26.8: Poster

Tuesday, March 11, 2025, 14:00–16:00, Tent

Towards x-ray quantum optics using periodically structured cavities — •Robert Horn and Jörg Evers — Max Planck Institute for Nuclear Physics, 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 cavity’s translational symmetry along the wave propagation direction by introducing a grating on the topmost layer. The aim is to investigate the emergence of additional scattering channels and to study photon correlations at varying incident angles.

Keywords: x-ray quantum optics; cavity qed; Moessbauer nuclei