New limits on the drift of fundamental constants from laboratory measurements

M. Fischer, N. Kolachevsky, M. Zimmermann, R. Holzwarth, Th Udem, T. W. Hänsch, M. Abgrall, J. Grünert, I. Maksimovic, S. Bize, H. Marion, F. Pereira Dos Santos, P. Lemonde, G. Santarelli, P. Laurent, A. Clairon, C. Salomon, M. Haas, U. D. Jentschura, C. H. Keitel

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The separate limits for the drift of α, μCs/ μB and μRbCs from laboratory experiments without assumptions of conceivable correlations among them were analyzed. The absolute 1S-2S transition frequency νH in atomic hydrogen was remeasured. It was shown that all these limits are consistent with zero. It was found that a corresponding linear drift of α is smaller than the uncertainty of the result, therefore it cannot be excluded.

Original languageEnglish
Article number234301
Pages (from-to)230802-1-230802-4
JournalPhysical review letters
Issue number23
Publication statusPublished - Jun 11 2004


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Fischer, M., Kolachevsky, N., Zimmermann, M., Holzwarth, R., Udem, T., Hänsch, T. W., Abgrall, M., Grünert, J., Maksimovic, I., Bize, S., Marion, H., Dos Santos, F. P., Lemonde, P., Santarelli, G., Laurent, P., Clairon, A., Salomon, C., Haas, M., Jentschura, U. D., & Keitel, C. H. (2004). New limits on the drift of fundamental constants from laboratory measurements. Physical review letters, 92(23), 230802-1-230802-4. [234301].