Hannover 2020 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 22: Poster Session - Atomic Physics III

A 22.22: Poster

Mittwoch, 11. März 2020, 16:00–18:00, Empore Lichthof

Controlling excitation dynamics of Mössbauer nuclei with zeptosecond phase-stability — •Pim van den Heuvel¹, Kilian P. Heeg¹, Andreas Kaldun¹, Cornelius Strohm², Christian Ott¹, Rajagopalan Subramanian¹, Dominik Lentrodt¹, Johann Haber², Hans-Christian Wille², Stephan Goerttler¹, Rudolf Rüffer³, Christoph H. Keitel¹, Ralf Röhlsberger², Thomas Pfeifer¹, and Jörg Evers¹ — ¹Max-Planck-Institut für Kernphysik, Heidelberg, Germany — ²Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany — ³ESRF - The European Synchrotron, Grenoble, France

In recent years Mössbauer nuclei have become a platform for quantum optics with x-rays and various effects from the optical domain have already been demonstrated. However, they are usually probed with single pulses, preventing straightforward realization of advanced optical schemes, such as those involving control fields. Here, an x-ray pulse shaping technique, which was previously employed for spectral narrowing, is presented. It produces a sequence of two pulses with controlled relative phase, allowing for controlling and steering the nuclear dynamics. The phase-stability of this set-up holds the promise to reach a sub-zeptosecond level, which is hitherto unachieved. New regimes of nuclear dynamics could be investigated with this technique.