Constraints on extra dimensions from atomic spectroscopy

TL;DR

This paper investigates how extra spatial dimensions could influence atomic energy levels, providing constraints on higher-dimensional theories through precise atomic spectroscopy measurements.

Contribution

It introduces a method to constrain higher-dimensional Planck mass using atomic transition data affected by modified gravitational potentials.

Findings

Constraints on higher-dimensional Planck mass derived from atomic spectroscopy.

Stronger constraints for narrower branes.

Demonstrates the impact of extra dimensions on atomic energy levels.

Abstract

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.