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A: Fachverband Atomphysik

A 28: Interaction with VUV and X-ray light

A 28.1: Vortrag

Donnerstag, 14. März 2019, 10:30–10:45, S HS 3 Physik

Coherent x-ray-optical control of nuclear excitons with zeptosecond phase-stability — •Kilian P. Heeg¹, Andreas Kaldun¹, Cornelius Strohm², Christian Ott¹, Rajagopalan Subramanian¹, Dominik Lendrodt¹, 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

Coherent control of nuclei using near-resonant x-ray fields is an open challenge since it requires a stability of the x-ray light in the few-zeptosecond range. Based on our recent work on spectral narrowing [1], we shape single x-rays delivered by modern x-ray facilities into tunable double pulses and demonstrate control of the relative phase with the desired stability on the few-zeptosecond level [2]. We experimentally exploit this phase control to steer the nuclear dynamics and switch between stimulated emission and enhanced excitation [2]. As application, we discuss strong driving of nuclear transitions [3]. As long-term perspective, we envision time-resolved studies of nuclear out-of-equilibrium dynamics and new prospects in nuclear quantum optics.

[1] K. P. Heeg et al., Science 357, 375 (2017).

[2] K. P. Heeg et al., submitted.

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