%0 Journal Article %T Millimetre-Range Forces in Superstring Theories with Weak-Scale Compactification %A I. Antoniadis %A S. Dimopoulos %A G. Dvali %J Physics %D 1997 %I arXiv %R 10.1016/S0550-3213(97)00808-0 %X We show that theories in which supersymmetry is broken via Scherk-Schwarz compactification at the weak scale, possess at least one scalar particle with Compton wavelength in the millimetre range, which mediates a force with strength 1/3 of gravity. Such forces are going to be explored in upcoming experiments using micro-electromechanical systems or cantilever technology. We also present a simple way of understanding some decoupling aspects of these theories by analogy with finite-temperature field theory. %U http://arxiv.org/abs/hep-ph/9710204v2