Attractive and repulsive quantum forces from dimensionality of space

I Bia$lslash$ynicki-Birula, M A Cirone, J P Dahl, R F O$rquot$Connell, W P Schleich
2002 Journal of Optics B-Quantum and Semiclassical Optics  
Two particles of identical mass attract and repel each other even when there exist no classical external forces and their average relative momentum vanishes. This quantum force depends crucially on the number of dimensions of space.
doi:10.1088/1464-4266/4/4/326 fatcat:b5peihyo2fg4zirnzlypladfum