STRONG IN SMALL AND WEAK AT LARGE: THOUGHTS AND BOUNDS ON HIGHER-DIMENSIONAL GRAVITY

摘要

Gravity in a higher-dimensional scenario is one of the most topical of research subjects due to the possibility of decisive results from experiments. The field exhibits duality of various kinds. On the one hand, the weakness of gravity and the hierarchy issues are handled with some success as one cascades from a larger number of small dimensions with strong gravity to a smaller number of dimensions of larger space with weaker effective gravity. On the experimental front, the highest energy accelerator and the weakest energy mechanical oscillators available to us today are simultaneously focussed at the TeV scale to address new features in gravity physics. This intriguing scenario and its conceptual and phenomenological aspects are examined here, with new results from considerations of hitherto-unexplored higher-dimensional gravitomagnetic effects at the atomic scale.