Excitation and probing of low-energy nuclear states at high-energy storage rings

Jin, Junlan; Bekker, Hendrik; Kirschbaum, Tobias; Litvinov, Yuri A.; Pálffy, Adriana; Sommerfeldt, Jonas; Surzhykov, Andrey; Thirolf, Peter G.; Budker, Dmitry

doi:https://doi.org/10.1103/PhysRevResearch.5.023134

Zugriffsnummer	50172
Dokumenttyp	Zeitschriftenartikel
Peer Review	mit Peer Review
Sprache	Englisch
Titel	Excitation and probing of low-energy nuclear states at high-energy storage rings
Autor(in); Institution	Jin, Junlan; Princeton University, Department of Electrical and Computer Engineering, Princeton, New Jersey, USA; University of Science and Technology of China, Department of Modern Physics, Hefei, CHINA Bekker, Hendrik; Johannes Gutenberg-Universität Mainz, Mainz, GERMANY; Helmholtz-Institut, GSI Helmholtzzentrum für Schwerionenforschung, Mainz, GERMANY Kirschbaum, Tobias; University of Würzburg, Institute for Theoretical Physics und Astrophysics, Würzburg, GERMANY Litvinov, Yuri A.; GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, GERMANY Pálffy, Adriana; Institute for Theoretical Physics und Astrophysics, University of Würzburg, Würzburg, GERMANY Sommerfeldt, Jonas; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig; Technische Universität Braunschweig, Braunschweig, GERMANY Surzhykov, Andrey; FPM, Fundamentale Physik für Metrologie, PTB-Braunschweig; Technische Universität Braunschweig, Braunschweig, GERMANY; Laboratory for Emerging Nanometrology, Braunschweig, GERMANY Thirolf, Peter G.; Ludwig-Maximilians-Universität München, Fakultät für Physik, Garching, GERMANY Budker, Dmitry; Johannes Gutenberg-Universität Mainz, Mainz, GERMANY; Helmholtz-Institut, GSI Helmholtzzentrum für Schwerionenforschung, Mainz, GERMANY; University of California, Department of Physics, Berkeley, California, USA
Quelle/Jahr	Physical Review Research: 5 (2023), 2, 023134-1 - 023134-24
Artikelnummer	023134
Availability	[online only]
ISSN	2643-1564 (online)
DOI	https://doi.org/10.1103/PhysRevResearch.5.023134
Verlag	College Park, Md.: APS
Freie Schlagworte	Thorium 229 nucleus ; direct photoexcitation ; electron bridge processes ; hyperfine interactions ; highly charged ions
Zusammenfassung	²²⁹Th with a low-lying nuclear isomeric state is an essential candidate for a nuclear clock as well as many other applications. Laser excitation of the isomeric state has been a long-standing goal. With relativistic ²²⁹Th ions in storage rings, high-power lasers with wavelengths in the visible range or longer can be used to achieve high excitation rates of ²²⁹Th isomers. This can be realized through direct resonant excitation or excitation via an intermediate nuclear or electronic state, facilitated by the tunability of both the laser-beam and ion-bunch parameters. Unique opportunities are offered by highly charged ²²⁹Th ions due to the nuclear-state mixing. The significantly reduced isomeric-state lifetime corresponds to a much higher excitation rate for direct resonant excitation. Importantly, we propose electric dipole transitions changing both the electronic and nuclear states that are opened by the nuclear hyperfine mixing. We suggest using them for efficient isomer excitation in Li-like ²²⁹Th ions, via stimulated Raman adiabatic passage or single-laser excitation. We also propose schemes for probing the isomers, utilizing nuclear radiative decay or laser spectroscopy on electronic transitions, through which the isomeric-state energy can be determined with an orders-of-magnitude higher precision than the current value. The schemes proposed here for ²²⁹Th could also be adapted to low-energy nuclear states in other nuclei, such as ²²⁹Pa.

Kostenfreier Zugang	Open Access Gold
Rechteinformation	CC BY 4.0 ; Creative Commons Attribution 4.0 License

Themenbereich der Metrologie	Zeit und Frequenz
Innovationscluster	Quantentechnologie
Geschäftsfelder	Grundlagen der Metrologie
Förderinformationen (1)	Förderername: Deutsche Forschungsgemeinschaft (DFG) Förderer ID: 0000 0001 2096 9829 Förderer ID Typ: ISNI Förderprogramm: EXC 2118 (PRISMA+ Cluster of Excellence) and the Helmholtz Excellence Network ExNet02 Förderungsnummer: 390831469
Förderinformationen (2)	Förderername: Deutsche Forschungsgemeinschaft (DFG) Förderer ID: 0000 0001 2096 9829 Förderer ID Typ: ISNI Förderprogramm: Heisenberg Program
Förderinformationen (3)	Förderername: Deutsche Forschungsgemeinschaft (DFG) Förderer ID: 0000 0001 2096 9829 Förderer ID Typ: ISNI Förderprogramm: EXC-2123 QuantumFrontiers Förderungsnummer: 390837967
Förderinformationen (4)	Förderername: Land Hessen Förderer ID: 0000 0004 0407 3792 Förderer ID Typ: ISNI Förderprogramm: Research Cluster EL- EMENTS Förderungsnummer: 500/10.006
Förderinformationen (5)	Förderername: European Union (EU) Förderer ID: 0000 0001 2375 4495 Förderer ID Typ: ISNI Titel der Förderung: ThoriumNuclearClock Förderungsnummer: 856415

Zitierung

Jin, J., Bekker, H., Kirschbaum, T., Litvinov, Y. A., Pálffy, A., Sommerfeldt, J., Surzhykov, A., Thirolf, P. G., & Budker, D. (2023). Excitation and probing of low-energy nuclear states at high-energy storage rings. Physical Review Research, 5(2), 023134-1–023134-24. https://doi.org/10.1103/PhysRevResearch.5.023134

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