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Q: Fachverband Quantenoptik und Photonik

Q 31: Poster: Quantum Optics and Photonics II

Q 31.65: Poster

Dienstag, 24. März 2015, 17:00–19:00, C/Foyer

Strong coupling and vacuum Rabi splitting in the x-ray regime — •Xiangjin Kong and Adriana Pálffy — Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg, Germany

The strong coupling regime of cavity quantum electrodynamics has been successfully reached for atoms in optical and microwave cavities and brings light-matter interaction to the single-photon level [1]. An extension towards higher frequencies is hindered by the fact that at present x-ray cavities with both high quality (Q) factor and small mode volume (V) required to demonstrate strong-coupling effects are not yet available. Here, we theoretically show that strong coupling in x-ray regime can be reached already with available technology in thin film cavities [2] using Mössbauer nuclear transitions to control single x-ray photons. In particular, our system demonstrates vacuum Rabi splitting, which is an important signature of strong coupling [3].

[1] Raimond J. M., Brune M. and Haroche S., Rev. Mod. Phys. 73, 565 (2001).

[2] R. Röhlsberer et al., Nature 482, 199 (2012).

[3] Bishop L. S. et al., Nature Phys. 5, 1059 (2008).