Mainz 2017 – scientific programme

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A: Fachverband Atomphysik

A 8: XUV/X-ray spectroscopy II

A 8.5: Talk

Monday, March 6, 2017, 18:30–18:45, N 2

Inducing and detecting collective population inversions of Mössbauer nuclei — •Kilian P. Heeg, Christoph H. Keitel, and Jörg Evers — Max-Planck-Institut für Kernphysik, Heidelberg, Germany

Up to now, experiments involving Mössbauer nuclei driven by x-rays have been restricted to the low-excitation regime. In this talk, we propose a setup which promises significant excitation, ideally exceeding full inversion of the nuclear ensemble, at x-ray light sources under construction. We further introduce a method to experimentally verify such inversions, in which population inversions manifest themselves in symmetry flips of suitably recorded spectra. It neither requires per-shot spectra of the incoming x-ray pulses, nor absolute measurements of the scattered light intensity.

K. P. Heeg, C. H. Keitel, J. Evers, arXiv:1607.04116 [quant-ph] (2016).