SAMOP 2021 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 17: Quantum Effects

Q 17.5: Poster

Donnerstag, 23. September 2021, 16:30–18:30, P

Classifying and harnessing multi-mode light-matter interaction in lossy resonators — •Dominik Lentrodt¹, Oliver Diekmann¹, Christoph H. Keitel¹, Stefan Rotter², and Jörg Evers¹ — ¹Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg — ²Institute for Theoretical Physics, Vienna University of Technology (TU Wien), 1040 Vienna, Austria

In this contribution, we present a practical framework to characterize multi-mode effects on quantum systems coupled to lossy resonators. By relating recently developed quantum optical few-mode models [1, 2] to the Mittag-Leffler pole expansion [3] of the cavity’s classical Green’s function, we identify three distinct classes of multi-mode effects in the loss-dominated regime. We show that these effects are crucial for understanding spectroscopic signatures in leaky and absorptive resonators, and that they further provide a tuning knob to design artificial quantum systems through such environments. Both aspects are illustrated with applications in x-ray cavity QED with Mössbauer nuclei [4, 5].

[1] D. Lentrodt and J. Evers, PRX 10, 011008 (2020)

[2] I. Medina et al. PRL 126, 093601 (2021)

[3] P. Lalanne et al. Laser & Photonics Reviews 12, 1700113 (2018)

[4] R. Röhlsberger and J. Evers, Quantum optical phenomena in nuclear resonant scattering, in “Modern Mössbauer Spectroscopy”, edited by Y. Yoshida and G. Langouche (2021)

[5] D. Lentrodt, K. P. Heeg, C. H. Keitel, and J. Evers, PRResearch 2, 023396 (2020)