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Constraints on extra dimensions from atomic spectroscopy

We consider a hydrogen atom confined in a thick brane embedded in a higher-dimensional space. Due to effects of the extra dimensions, the gravitational potential is amplified in distances smaller than the size of the supplementary space, in comparison with the Newtonian potential. Studying the influence of the gravitational interaction modified by the extra dimensions on the energy levels of the hydrogen atom, we find independent constraints for the higher-dimensional Planck mass in terms of the thickness of the brane by using accurate measurements of atomic transition frequencies. The constraints are very stringent for narrow branes.

preprint2016arXivOpen access
F. DahiaA. S. Lemos
physics.atom-phhep-phgr-qchep-thquant-ph
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Open access2 authors5 topics
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F. DahiaA. S. Lemos

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