Experimental evidence; satisfying the Einstein-Podolsky-Rosen criterion for physical reality, for Einstein's Einweg point of view

A real Young's double-slit experiment which can, without destroying the fringe pattern, establish unequivocally whether a photon passes like a wave along both the paths or passes like a particle along one or the other path only, is presented. The main feature of this experiment is that the point at which the incident wave is to be regarded as being split into two parts to go along the two paths is distinct from the point at which successive incident particles are to be regarded as having random choice to go along one or the other path. Our experimental results support Einstein's Einweg (one-path) point of view.