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Q: Fachverband Quantenoptik und Photonik

Q 10: Quantum Optics and Nuclear Quantum Optics I

Q 10.3: Vortrag

Montag, 10. März 2025, 17:45–18:00, AP-HS

Quantum optical effects in three-layer thin-film x-ray cavities — •Julien Spitzlay, Fabian Richter, and Adriana Pálffy — Julius-Maximilians-Universität Würzburg

Thin-film cavities with several embedded layers of Mössbauer nuclei are an intriguing platform for the realization of quantum optical effects in the x-ray regime. Many theoretical models have been developed in the past decade to describe the resonant x-ray scattering in these nanostructures, for instance an ab-initio formalism based on the electromagnetic Green’s function [1,2].

In this work, we investigate parallels between this numerically efficient description and well-known cavity QED models, which provide a better physical interpretation. Applied to a three-layer x-ray cavity, we are interested in the occurrence of electromagnetically induced transparency (EIT) and Autler-Townes-Splitting (ATS). The aim is to identify parameter regimes where thin-film x-ray cavities can exhibit a behaviour reminiscent to these phenomena and in particular the tuning parameter that controls the transition between EIT and ATS. Our analysis is based on the model of decaying dressed states [3].

[1] D. Lentrodt, K. Heeg, C. H. Keitel, J. Evers, Phys. Rev. Research 2, 023396 (2020)
[2] X. Kong, D. Chang, A. Pálffy, Phys. Rev. A 102, 033710 (2020)
[3] P. Anisimov, O. Kocharovskaya, J. Mod. Opt. 55, 3159 (2008)

Keywords: X-Ray Quantum Optics; Thin-Film Cavity; Electromagnetically induced transparency