Publication

Sensitivity of ultracold-atom scattering experiments to variation of the fine-structure constant

Borschevsky, A., Beloy, K., Flambaum, V. V. & Schwerdtfeger, P., 19-May-2011, In : Physical Review A. 83, 5, 5 p., 052706.

Research output: Contribution to journalArticleAcademicpeer-review

We present numerical calculations for cesium and mercury to estimate the sensitivity of the scattering length to the variation of the fine-structure constant a. The method used follows the ideas of Chin and Flambaum [Phys. Rev. Lett. 96, 230801 (2006)], where the sensitivity to the variation of the electron-to-proton mass ratio beta was considered. We demonstrate that for heavy systems, the sensitivity to the variation of a is of the same order of magnitude as to the variation of beta. Near narrow Feshbach resonances, the enhancement of the sensitivity may exceed nine orders of magnitude.

Original languageEnglish
Article number052706
Number of pages5
JournalPhysical Review A
Volume83
Issue number5
Publication statusPublished - 19-May-2011
Externally publishedYes

    Keywords

  • SPACE-TIME VARIATION, FUNDAMENTAL CONSTANTS, CLOCKS

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