Testing the Stability of Fundamental Constants Using Atomic Fountains
Sébastien Bize
(1, 2)
,
Michel Abgrall
(1, 2)
,
Harold Marion
(1, 2)
,
Franck Pereira dos Santos
(1, 2)
,
Ivan Maksimovic
(1, 2)
,
Shaun Zhang
(1, 2)
,
Yvan Sortais
(1, 2)
,
Céline Vian
(1, 2)
,
Jan Grünert
(1, 2)
,
Luigi Cacciapuoti
(1, 2)
,
Cipriana Mandache
(1, 2)
,
Philippe Laurent
(1, 2)
,
Pierre Lemonde
(1, 2)
,
Peter Rosenbusch
(1, 2)
,
Giorgio Santarelli
(1, 2)
,
André Clairon
(1, 2)
,
Christophe Salomon
(3)
Sébastien Bize
- Fonction : Auteur
- PersonId : 739323
- IdHAL : sebastien-bize
- ORCID : 0000-0003-2483-5152
- IdRef : 060323655
Michel Abgrall
- Fonction : Auteur
- PersonId : 1241408
- IdHAL : michel-abgrall
- ORCID : 0000-0003-0415-0770
Franck Pereira dos Santos
- Fonction : Auteur
- PersonId : 6778
- IdHAL : franck-pereira-dos-santos
- ORCID : 0000-0003-0659-5028
- IdRef : 092862993
Ivan Maksimovic
- Fonction : Auteur
- PersonId : 1394779
- IdHAL : ivan-maksimovic
Résumé
We report a test of the stability of fundamental constants based on laboratory experiments. This test relies on high-precision comparisons of atomic frequencies. The ground state hyperfine frequencies of 87Rb and 133Cs are compared over five years using atomic fountains. These measurements lead to the following constraint {d / {dt}} ln ( {(g{C} {s} /g{Rb} )alpha 0.44 } ; ) = (0.2 ± 7.0) × 10{ - 16} {yr}{ - 1} (1sigma uncertainty) where g is the nuclear g-factor and alpha the fine structure constant.