Bonn 2025 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 52: Nuclear Clocks
Donnerstag, 13. März 2025, 11:00–13:00, HS Botanik
In 2024, direct laser excitation of the 229-Th nuclear clock transition was achieved by three research groups. These breakthroughs have led to several orders of magnitude of improvement in the energy constraint of this nuclear state. With this knowledge, the implementation of a nuclear clock has started with a rapid succession of laser, ion trap and host material developments. A nuclear clock promises very high accuracy and stability as well as interesting applications in fundamental physics. This session highlights these exciting development with two invited and four contributed talks.
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11:00 | Q 52.1 | Hauptvortrag: Recent progress towards the development of a 229Th-based nuclear optical clock — •Lars von der Wense |
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11:30 | Q 52.2 | Towards a solid-state VUV CW Laser for the 229Th Nuclear Clock — •Keerthan Subramanian, Nutan Kumari Sah, Florian Zacherl, Srinivasa Pradeep Arasada, Valerii Andriushkov, Yumiao Wang, Ke Zhang, Jonas Stricker, Christoph Düllmann, Dmitry Budker, Ferinand Schmidt-Kaler, and Lars von der Wense |
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11:45 | Q 52.3 | Towards Continuous-Wave Laser Excitation of the 229Th Nuclear Isomer Sympathetically Cooled with Ca Ions — •Ke Zhang, Valerii Andriushkov, Yumiao Wang, Keerthan Subramanian, Srinivasa Pradeep Arasada, Florian Zacherl, Nutan Kumari Sah, Jonas Stricker, Christoph E. Düllmann, Dmitry Budker, Ferdinand Schmidt-Kaler, and Lars von der Wense |
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12:00 | Q 52.4 | Buffer Gas Stopping Cell for Extraction of 229Th Ions for Nuclear Clock Development — •Srinivasa Pradeep Arasada, Florian Zacherl, Keerthan Subramanian, Jonas Stricker, Valerii Andriushkov, Yumiao Wang, Nutan Kumari Sah, Ke Zhang, Ferdinand Schmidt-Kaler, Dmitry Budker, Christoph E Düllmann, and Lars von der Wense |
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12:15 | Q 52.5 | Construction and Commissioning of a Closed-Cycle Xenon-Recycling System for HHG-based VUV Lasers — •Georg Holthoff, Tim Teuner, and Peter G. Thirolf |
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12:30 | Q 52.6 | Hauptvortrag: Making a solid-state nuclear optical clock — •Kjeld Beeks, Luca Toscani de Col, Ira Morawetz, Rahul Singh, Michael Bartokos, Thomas Riebner, Fabian Schaden, Georgy Kazakov, Tomas Sikorsky, Thomas LaGrange, Fabrizio Carbone, and Thorsten Schumm |