dc.identifier.uri |
http://dx.doi.org/10.15488/3083 |
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dc.identifier.uri |
http://www.repo.uni-hannover.de/handle/123456789/3113 |
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dc.contributor.author |
Windberger, A.
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dc.contributor.author |
Crespo López-Urrutia, J.R.
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dc.contributor.author |
Bekker, H.
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dc.contributor.author |
Oreshkina, N.S.
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dc.contributor.author |
Berengut, J.C.
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dc.contributor.author |
Bock, V.
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dc.contributor.author |
Borschevsky, A.
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dc.contributor.author |
Dzuba, V.A.
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dc.contributor.author |
Eliav, E.
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dc.contributor.author |
Harman, Z.
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dc.contributor.author |
Kaldor, U.
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dc.contributor.author |
Kaul, S.
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dc.contributor.author |
Safronova, U.I.
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dc.contributor.author |
Flambaum, V.V.
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dc.contributor.author |
Keitel, C.H.
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dc.contributor.author |
Schmidt, Piet O.
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dc.contributor.author |
Ullrich, J.
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dc.contributor.author |
Versolato, O.O.
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dc.date.accessioned |
2018-04-11T10:45:18Z |
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dc.date.available |
2018-04-11T10:45:18Z |
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dc.date.issued |
2015 |
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dc.identifier.citation |
Windberger, A.; Crespo López-Urrutia, J.R.; Bekker, H.; Oreshkina, N.S.; Berengut, J.C. et al.: Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants. In: Physical Review Letters 114 (2015), Nr. 15, 150801. DOI: https://doi.org/10.1103/PhysRevLett.114.150801 |
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dc.description.abstract |
We measure optical spectra of Nd-like W, Re, Os, Ir, and Pt ions of particular interest for studies of a possibly varying fine-structure constant. Exploiting characteristic energy scalings we identify the strongest lines, confirm the predicted 5s-4f level crossing, and benchmark advanced calculations. We infer two possible values for optical M2/E3 and E1 transitions in Ir17+ that have the highest predicted sensitivity to a variation of the fine-structure constant among stable atomic systems. Furthermore, we determine the energies of proposed frequency standards in Hf12+ and W14+. © 2015 American Physical Society. |
eng |
dc.language.iso |
eng |
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dc.publisher |
College Park, MD : American Physical Society |
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dc.relation.ispartofseries |
Physical Review Letters 114 (2015), Nr. 15 |
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dc.rights |
Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. |
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dc.subject |
Atomic physics |
eng |
dc.subject |
Frequency standards |
eng |
dc.subject |
Iridium |
eng |
dc.subject |
Railroad crossings |
eng |
dc.subject |
Atomic system |
eng |
dc.subject |
Characteristic energy |
eng |
dc.subject |
Fine structure constants |
eng |
dc.subject |
Fundamental constants |
eng |
dc.subject |
Level crossing |
eng |
dc.subject |
Optical lines |
eng |
dc.subject |
Optical spectra |
eng |
dc.subject |
Scalings |
eng |
dc.subject |
Sensitivity analysis |
eng |
dc.subject.ddc |
530 | Physik
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ger |
dc.title |
Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants |
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dc.type |
Article |
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dc.type |
Text |
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dc.relation.issn |
00319007 |
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dc.relation.doi |
https://doi.org/10.1103/PhysRevLett.114.150801 |
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dc.bibliographicCitation.issue |
15 |
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dc.bibliographicCitation.volume |
114 |
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dc.bibliographicCitation.firstPage |
150801 |
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dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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