Some recent theories which try to amend shortcomings of current models in physics suggest
the existence of additional dimensions. Such extra dimensions would modify the inverse
square law of gravity.
A short overview over gravitational theory is presented and some of the extensions to
general relativity and models which use extra dimensions, so-called Kaluza–Klein theories
are discussed. A derivation of the correction to Newton’s gravitational law due to extra
dimensions is performed and yields an additional term of Yukawa-type. We determine its
interaction range and strength and derive the gravitational constant in the extra dimensional
space. Experiments which probe Newton’s inverse square law are presented and recent
results and constraints on corrections of Yukawa-type are discussed.
This report is part of my bachelor degree project in theoretical physics at KTH.
2013. , 26 p.