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Journal Article

Coherent control of collective nuclear quantum states via transient magnons

MPS-Authors
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Meier,  G.
Dynamics and Transport in Nanostructures, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
The Hamburg Centre for Ultrafast Imaging;

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eabc3991.full.pdf
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Citation

Bocklage, L., Gollwitzer, J., Strohm, C., Adolff, C. F., Schlage, K., Sergeev, I., et al. (2021). Coherent control of collective nuclear quantum states via transient magnons. Science Advances, 7(5): eabc3991. doi:10.1126/sciadv.abc3991.


Cite as: http://hdl.handle.net/21.11116/0000-0007-DC17-8
Abstract
Ultrafast and precise control of quantum systems at x-ray energies involves photons with oscillation periods below 1 as. Coherent dynamic control of quantum systems at these energies is one of the major challenges in hard x-ray quantum optics. Here, we demonstrate that the phase of a quantum system embedded in a solid can be coherently controlled via a quasi-particle with subattosecond accuracy. In particular, we tune the quantum phase of a collectively excited nuclear state via transient magnons with a precision of 1 zs and a timing stability below 50 ys. These small temporal shifts are monitored interferometrically via quantum beats between different hyperfine-split levels. The experiment demonstrates zeptosecond interferometry and shows that transient quasi-particles enable accurate control of quantum systems embedded in condensed matter environments.