Limit on the temporal variation of the fine-structure constant using atomic dysprosium
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- A Cingoz
- A Lapierre
- A-T Nguyen
- N Leefer
- D Budker
- SK Lamoreaux
- JR Torgerson
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000243789700008&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1103/PhysRevLett.98.040801
- eISSN
- 1079-7114
- Externe Identifier
- Clarivate Analytics Document Solution ID: 130HD
- PubMed Identifier: 17358752
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 4
- Zeitschrift
- PHYSICAL REVIEW LETTERS
- Artikelnummer
- ARTN 040801
- Datum der Veröffentlichung
- 2007
- Status
- Published
- Titel
- Limit on the temporal variation of the fine-structure constant using atomic dysprosium
- Sub types
- Article
- Ausgabe der Zeitschrift
- 98
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Autoren
- A Cingöz
- A Lapierre
- A-T Nguyen
- N Leefer
- D Budker
- SK Lamoreaux
- JR Torgerson
- DOI
- 10.1103/physrevlett.98.040801
- eISSN
- 1079-7114
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 4
- Zeitschrift
- Physical Review Letters
- Sprache
- en
- Artikelnummer
- 040801
- Online publication date
- 2007
- Status
- Published online
- Herausgeber
- American Physical Society (APS)
- Herausgeber URL
- http://dx.doi.org/10.1103/physrevlett.98.040801
- Datum der Datenerfassung
- 2017
- Titel
- Limit on the Temporal Variation of the Fine-Structure Constant Using Atomic Dysprosium
- Ausgabe der Zeitschrift
- 98
Datenquelle: Crossref
- Abstract
- Over 8 months, we monitored transition frequencies between nearly degenerate, opposite-parity levels in two isotopes of atomic dysprosium (Dy). These frequencies are sensitive to variation of the fine-structure constant (alpha) due to relativistic corrections of opposite sign for the opposite-parity levels. In this unique system, in contrast to atomic-clock comparisons, the difference of the electronic energies of the opposite-parity levels can be monitored directly utilizing a rf electric-dipole transition between them. Our measurements show that the frequency variation of the 3.1-MHz transition in (163)Dy and the 235-MHz transition in (162)Dy are 9.0+/-6.7 Hz/yr and -0.6+/-6.5 Hz/yr, respectively. These results provide a rate of fractional variation of alpha of (-2.7+/-2.6) x 10(-15) yr(-1) (1 sigma) without assumptions on constancy of other fundamental constants, indicating absence of significant variation at the present level of sensitivity.
- Addresses
- Department of Physics, University of California at Berkeley, Berkeley, California 94720-7300, USA.
- Autoren
- A Cingöz
- A Lapierre
- A-T Nguyen
- N Leefer
- D Budker
- SK Lamoreaux
- JR Torgerson
- DOI
- 10.1103/physrevlett.98.040801
- eISSN
- 1079-7114
- Externe Identifier
- PubMed Identifier: 17358752
- Open access
- false
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 4
- Zeitschrift
- Physical review letters
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2007
- Paginierung
- 040801
- Datum der Veröffentlichung
- 2007
- Status
- Published
- Datum der Datenerfassung
- 2007
- Titel
- Limit on the temporal variation of the fine-structure constant using atomic dysprosium.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 98
Datenquelle: Europe PubMed Central
- Abstract
- Over 8 months, we monitored transition frequencies between nearly degenerate, opposite-parity levels in two isotopes of atomic dysprosium (Dy). These frequencies are sensitive to variation of the fine-structure constant (alpha) due to relativistic corrections of opposite sign for the opposite-parity levels. In this unique system, in contrast to atomic-clock comparisons, the difference of the electronic energies of the opposite-parity levels can be monitored directly utilizing a rf electric-dipole transition between them. Our measurements show that the frequency variation of the 3.1-MHz transition in (163)Dy and the 235-MHz transition in (162)Dy are 9.0+/-6.7 Hz/yr and -0.6+/-6.5 Hz/yr, respectively. These results provide a rate of fractional variation of alpha of (-2.7+/-2.6) x 10(-15) yr(-1) (1 sigma) without assumptions on constancy of other fundamental constants, indicating absence of significant variation at the present level of sensitivity.
- Autoren
- A Cingöz
- A Lapierre
- A-T Nguyen
- N Leefer
- D Budker
- SK Lamoreaux
- JR Torgerson
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/17358752
- DOI
- 10.1103/PhysRevLett.98.040801
- ISSN
- 0031-9007
- Ausgabe der Veröffentlichung
- 4
- Zeitschrift
- Phys Rev Lett
- Sprache
- eng
- Country
- United States
- Paginierung
- 040801
- Datum der Veröffentlichung
- 2007
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2007
- Titel
- Limit on the temporal variation of the fine-structure constant using atomic dysprosium.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 98
Datenquelle: PubMed
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