LIGHT DEFLECTION IN KALUZA-KLEIN GRAVITY

When general relativity is extended from four to five dimensions, as i n the theory of Kaluza and Klein, the relations for the classical test s are modified. The light-deflection problem shows a particularly inte resting modification. We derive the general expression for light defle ction by a massive body in the five-dimensional theory, and show that it can lead to significantly reduced deflection angles. (C) 1995 Ameri can Institute of Physics.