Enhancement of the effects of space-time variation of the fundamental constants in collisions of cold atoms near Feshbach resonances

29th International Conference on Photonic, Electronic, and Atomic Collisions

Flambaum, V.V.^1 ; Chin, C.^2 ; Berengut, J.^1

School of Physics, University of New South Wales, Sydney

NSW

2052, Australia^1

James Franck Institute, Department of Physics, University of Chicago, Chicago

IL

60637, United States^2

关键词: Enhanced effects;    Feshbach resonances;    Fine structure constants;    Fundamental constants;    Laboratory experiments;    New results;    Quasar absorption;    Space time;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/2/022016/pdf
DOI  :  10.1088/1742-6596/635/2/022016

来源: IOP

【 摘 要 】

New results based on the quasar absorption data indicate variation of the fine structure constant alpha in space. These results are tested in different astrophysical measurements and laboratory experiments with atomic and nuclear clocks. Systems with enhanced effects of the variation may be especially important. Huge enhncement of the effects of space-time variation of the fundamental constants appears in collisions of cold atoms near Feshbach resonances.