Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants

A. Windberger; J. R. Crespo López-Urrutia; H. Bekker; N. S. Oreshkina; J. C. Berengut; V. Bock; A. Borschevsky; V. A. Dzuba; E. Eliav; Z. Harman; U. Kaldor; S. Kaul; U. I. Safronova; V. V. Flambaum; C. H. Keitel; P. O. Schmidt; J. Ullrich; O. O. Versolato

doi:10.1103/PhysRevLett.114.150801

Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants

A. Windberger, J. R. Crespo López-Urrutia, H. Bekker, N. S. Oreshkina, J. C. Berengut, V. Bock, A. Borschevsky, V. A. Dzuba, E. Eliav, Z. Harman, U. Kaldor, S. Kaul, U. I. Safronova, V. V. Flambaum, C. H. Keitel, P. O. Schmidt, J. Ullrich, O. O. Versolato

School of Chemistry

Tel Aviv University

Research output: Contribution to journal › Article › peer-review

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+.

Original language	English
Article number	150801
Journal	Physical Review Letters
Volume	114
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevLett.114.150801
State	Published - 16 Apr 2015

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.114.150801

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Windberger, A., Crespo López-Urrutia, J. R., Bekker, H., Oreshkina, N. S., Berengut, J. C., Bock, V., Borschevsky, A., Dzuba, V. A., Eliav, E., Harman, Z., Kaldor, U., Kaul, S., Safronova, U. I., Flambaum, V. V., Keitel, C. H., Schmidt, P. O., Ullrich, J., & Versolato, O. O. (2015). Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants. Physical Review Letters, 114(15), Article 150801. https://doi.org/10.1103/PhysRevLett.114.150801

@article{bca6fc08e70e4252abb2f48e2273ceb8,

title = "Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants",

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+.",

author = "A. Windberger and {Crespo L{\'o}pez-Urrutia}, {J. R.} and H. Bekker and Oreshkina, {N. S.} and Berengut, {J. C.} and V. Bock and A. Borschevsky and Dzuba, {V. A.} and E. Eliav and Z. Harman and U. Kaldor and S. Kaul and Safronova, {U. I.} and Flambaum, {V. V.} and Keitel, {C. H.} and Schmidt, {P. O.} and J. Ullrich and Versolato, {O. O.}",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = apr,

day = "16",

doi = "10.1103/PhysRevLett.114.150801",

language = "الإنجليزيّة",

volume = "114",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Institute of Physics",

number = "15",

}

Windberger, A, Crespo López-Urrutia, JR, Bekker, H, Oreshkina, NS, Berengut, JC, Bock, V, Borschevsky, A, Dzuba, VA, Eliav, E, Harman, Z, Kaldor, U, Kaul, S, Safronova, UI, Flambaum, VV, Keitel, CH, Schmidt, PO, Ullrich, J & Versolato, OO 2015, 'Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants', Physical Review Letters, vol. 114, no. 15, 150801. https://doi.org/10.1103/PhysRevLett.114.150801

TY - JOUR

T1 - Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants

AU - Windberger, A.

AU - Crespo López-Urrutia, J. R.

AU - Bekker, H.

AU - Oreshkina, N. S.

AU - Berengut, J. C.

AU - Bock, V.

AU - Borschevsky, A.

AU - Dzuba, V. A.

AU - Eliav, E.

AU - Harman, Z.

AU - Kaldor, U.

AU - Kaul, S.

AU - Safronova, U. I.

AU - Flambaum, V. V.

AU - Keitel, C. H.

AU - Schmidt, P. O.

AU - Ullrich, J.

AU - Versolato, O. O.

PY - 2015/4/16

Y1 - 2015/4/16

N2 - 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+.

AB - 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+.

UR - http://www.scopus.com/inward/record.url?scp=84929587551&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.114.150801

DO - 10.1103/PhysRevLett.114.150801

M3 - مقالة

SN - 0031-9007

VL - 114

JO - Physical Review Letters

JF - Physical Review Letters

IS - 15

M1 - 150801

ER -

Identification of the predicted 5s-4f level crossing optical lines with applications to metrology and searches for the variation of fundamental constants

Abstract

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