Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Benedict, Seiferle"'
Autor:
Kevin Scharl, Shiqian Ding, Georg Holthoff, Mahmood Irtiza Hussain, Sandro Kraemer, Lilli Löbell, Daniel Moritz, Tamila Rozibakieva, Benedict Seiferle, Florian Zacherl, Peter G. Thirolf
Publikováno v:
Atoms, Vol 11, Iss 7, p 108 (2023)
For the realization of an optical nuclear clock, the first isomeric excited state of thorium-229 (229mTh) is currently the only candidate due to its exceptionally low-lying excitation energy (8.338±0.024 eV). Such a nuclear clock holds promise not o
Externí odkaz:
https://doaj.org/article/bd34755fd0984b509dc479f0953c530b
Autor:
Benedict Seiferle, Daniel Moritz, Kevin Scharl, Shiqian Ding, Florian Zacherl, Lilli Löbell, Peter G. Thirolf
Publikováno v:
Atoms, Vol 10, Iss 1, p 24 (2022)
The first nuclear excited state in 229Th possesses the lowest excitation energy of all currently known nuclear levels. The energy difference between the ground- and first-excited (isomeric) state (denoted with 229mTh) amounts only to ≈8.2 eV (≈15
Externí odkaz:
https://doaj.org/article/722916dab6944d5a83c2d3ebf379d147
Autor:
Eric Hudson, Eugene Tkalya, Peter Thirolf, Benedict Seiferle, Lars von der Wense, Christoph Düllmann, Dennis Renisch, Alina Heihoff, Sae Woo Nam, Dileep Reddy, Varun Verma, Galen O'Neil, Justin Jeet, Christian Schneider, Ricky Elwell
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1d795e6d51b96c076449ef497242700
https://doi.org/10.26226/m.6275705c66d5dcf63a31158f
https://doi.org/10.26226/m.6275705c66d5dcf63a31158f
Publikováno v:
Nuclear Physics News
More than 6,000 years ago, Sumerians used light to measure time. They built sundials. Nowadays, laser light forms the basis of the most precise timekeepers: the most accurate time and frequency mea...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e50a31082773edca66c9eeaad7a8214
Autor:
Benedict Seiferle, Lars von der Wense
The proposal for the development of a nuclear optical clock has triggered a multitude of experimental and theoretical studies. In particular the prediction of an unprecedented systematic frequency uncertainty of about$$10^{-19}$$10-19has rendered a n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::945250014e2b2a018605f0fad1cefb57
http://arxiv.org/abs/2009.13633
http://arxiv.org/abs/2009.13633
Autor:
Lars von der Wense, Johannes Weitenberg, Adriana Pálffy, Pavlo V. Bilous, Peter G. Thirolf, Simon Stellmer, Georgy A. Kazakov, Benedict Seiferle
Publikováno v:
European Physical Journal A
The European Physical Journal A
The European Physical Journal A: Hadrons and Nuclei
The European Physical Journal A
The European Physical Journal A: Hadrons and Nuclei
A comprehensive theoretical study of direct laser excitation of a nuclear state based on the density matrix formalism is presented. The nuclear clock isomer $$^{229\text {m}}$$ Th is discussed in detail, as it could allow for direct laser excitation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5502276001346d9e6b2df1b544102f8
https://hdl.handle.net/21.11116/0000-0006-CDCD-D21.11116/0000-0006-CDCF-B21.11116/0000-0006-CDD0-8
https://hdl.handle.net/21.11116/0000-0006-CDCD-D21.11116/0000-0006-CDCF-B21.11116/0000-0006-CDD0-8
Autor:
Pavlo V, Bilous, Hendrik, Bekker, Julian C, Berengut, Benedict, Seiferle, Lars, von der Wense, Peter G, Thirolf, Thomas, Pfeifer, José R Crespo, López-Urrutia, Adriana, Pálffy
Publikováno v:
Physical review letters. 124(19)
The excitation of the 8 eV ^{229m}Th isomer through the electronic bridge mechanism in highly charged ions is investigated theoretically. By exploiting the rich level scheme of open 4f orbitals and the robustness of highly charged ions against photoi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::0c0225c3266611874338ad9e56151622
https://pubmed.ncbi.nlm.nih.gov/32469560
https://pubmed.ncbi.nlm.nih.gov/32469560
Autor:
Thomas Pfeifer, Pavlo V. Bilous, Peter G. Thirolf, Benedict Seiferle, José R. Crespo López-Urrutia, Adriana Pálffy, H. Bekker, Lars von der Wense, Julian C. Berengut
The excitation of the 8 eV $^{229m}$Th isomer through the electronic bridge mechanism in highly charged ions is investigated theoretically. By exploiting the rich level scheme of open $4f$ orbitals and the robustness of highly charged ions against ph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b84bad0bc016f0478c196471ce8006ee
Autor:
Christoph E. Düllmann, Johannes Thielking, Peter G. Thirolf, M. V. Okhapkin, Ekkehard Peik, David M. Meier, Lars von der Wense, Benedict Seiferle, Przemysław Głowacki
Publikováno v:
Nature
The isotope $^{229}$Th is the only nucleus known to possess an excited state $^{229m}$Th in the energy range of a few electron volts, a transition energy typical for electrons in the valence shell of atoms, but about four orders of magnitude lower th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0cb1a5037822e13fa790c873675ceb55
https://doi.org/10.1038/s41586-018-0011-8
https://doi.org/10.1038/s41586-018-0011-8