Gouy phase in nonclassical paths in a triple-slit interference experiment
I. G. da Paz, Carlos H. S. Vieira, R. Ducharme, Luís A. Cabral, H. Alexander, Marcos Sampaio · Physical Review A · 2016
We propose a simple model to study the Gouy phase effect in the triple-slit experiment in which we consider a nonclassical path. The Gouy phase differs for classical and nonclassical paths as it depends on the propagation time. In this case the Gouy phase difference changes the Sorkin parameter $\ensuremath{\kappa}$ used to estimate the nonclassical path contribution in a nontrivial way, shedding some light on the implementation of experiments to detect nonclassical path contributions.