Nondipole effects in interference patterns of a two-electron wave

When the photoionization is described beyond dipole approximation, electron in atoms and molecules will experience a spatially dependent light phase. As demonstrated recent experiment on one-photon double ionization of ${\mathrm{H}}_{2}$ [S. Grundmann et al., Science 370, 339 (2020)], resulting phase difference modifies interference pattern. By solving full-dimensional time-dependent Schr\"odinger equation present work provides corresponding ab initio calculations that have been missing so far, to best our knowledge. Due two-electron nature this process, one may wonder about roles played by electron-electron correlation shifting fringes. Indeed, we show modification pattern occurs at level, which independent energy partition between two electrons. Our numerical results agree excellently with prediction simple model, entangled pair launched