Details
| Original language | English |
|---|---|
| Article number | 23 |
| Journal | Hyperfine Interactions |
| Volume | 240 |
| Issue number | 1 |
| Publication status | E-pub ahead of print - 13 Mar 2019 |
Abstract
229 Th is the only nucleus currently under investigation for the development of a nuclear optical clock (NOC) of ultra-high accuracy. The insufficient knowledge of the first nuclear excitation energy of 229 Th has so far hindered direct nuclear laser spectroscopy of thorium ions and thus the development of a NOC. Here, a nuclear laser excitation scheme is detailed, which makes use of thorium atoms instead of ions. This concept, besides potentially leading to the first nuclear laser spectroscopy, would determine the isomeric energy to 40 μeV resolution, corresponding to 10 GHz, which is a 10 4 times improvement compared to the current best energy constraint. This would determine the nuclear isomeric energy to a sufficient accuracy to allow for nuclear laser spectroscopy of individual thorium ions in a Paul trap and thus the development of a single-ion nuclear optical clock.
Keywords
- Nuclear laser spectroscopy, Nuclear optical clock, Thorium-229
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Nuclear and High Energy Physics
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
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In: Hyperfine Interactions, Vol. 240, No. 1, 23, 13.03.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - The concept of laser-based conversion electron Mössbauer spectroscopy for a precise energy determination of 229m Th
AU - von der Wense, Lars C.
AU - Seiferle, Benedict
AU - Schneider, Christian
AU - Jeet, Justin
AU - Amersdorffer, Ines
AU - Arlt, Nicolas
AU - Zacherl, Florian
AU - Haas, Raphael
AU - Renisch, Dennis
AU - Mosel, Patrick
AU - Mosel, Philip
AU - Kovacev, Milutin
AU - Morgner, Uwe
AU - Düllmann, Christoph E.
AU - Hudson, Eric R.
AU - Thirolf, Peter G.
N1 - Funding Information: Acknowledgements We would like to thank S. Stellmer and T. Schumm for discussions and lending of the VUV excimer laser. For discussions we are also grateful to G. Kazakov, A. Pálffy, J. Weitenberg and E. Peik. This work was supported by DFG (Th956/3-2) and by the European Union’s Horizon 2020 research and innovation programme under grant agreement 6674732 ”nuClock”. The efforts at UCLA have been supported in part by DARPA (QuASAR program), ARO (W911NF-11-1-0369), NSF (PHY-1205311), NIST PMG (60NANB14D302), RCSA (20112810), and DOE Office of Nuclear Physics, Isotope Programme.
PY - 2019/3/13
Y1 - 2019/3/13
N2 - 229 Th is the only nucleus currently under investigation for the development of a nuclear optical clock (NOC) of ultra-high accuracy. The insufficient knowledge of the first nuclear excitation energy of 229 Th has so far hindered direct nuclear laser spectroscopy of thorium ions and thus the development of a NOC. Here, a nuclear laser excitation scheme is detailed, which makes use of thorium atoms instead of ions. This concept, besides potentially leading to the first nuclear laser spectroscopy, would determine the isomeric energy to 40 μeV resolution, corresponding to 10 GHz, which is a 10 4 times improvement compared to the current best energy constraint. This would determine the nuclear isomeric energy to a sufficient accuracy to allow for nuclear laser spectroscopy of individual thorium ions in a Paul trap and thus the development of a single-ion nuclear optical clock.
AB - 229 Th is the only nucleus currently under investigation for the development of a nuclear optical clock (NOC) of ultra-high accuracy. The insufficient knowledge of the first nuclear excitation energy of 229 Th has so far hindered direct nuclear laser spectroscopy of thorium ions and thus the development of a NOC. Here, a nuclear laser excitation scheme is detailed, which makes use of thorium atoms instead of ions. This concept, besides potentially leading to the first nuclear laser spectroscopy, would determine the isomeric energy to 40 μeV resolution, corresponding to 10 GHz, which is a 10 4 times improvement compared to the current best energy constraint. This would determine the nuclear isomeric energy to a sufficient accuracy to allow for nuclear laser spectroscopy of individual thorium ions in a Paul trap and thus the development of a single-ion nuclear optical clock.
KW - Nuclear laser spectroscopy
KW - Nuclear optical clock
KW - Thorium-229
UR - http://www.scopus.com/inward/record.url?scp=85063086182&partnerID=8YFLogxK
U2 - 10.1007/s10751-019-1564-0
DO - 10.1007/s10751-019-1564-0
M3 - Article
AN - SCOPUS:85063086182
VL - 240
JO - Hyperfine Interactions
JF - Hyperfine Interactions
SN - 0304-3843
IS - 1
M1 - 23
ER -