%0 Journal Article %T Problems connected with electrons trajectory in separated atom %A Evgueni V. Kovarski %J Physics %D 2001 %I arXiv %X The time-dependent electromagnetic field can results both pair waves and pair particles. It can be for mathematical relations between two functions with identical argument and difference of phases equal to $\pi$. Two examples both the opportunity of phase synchronism for different frequencies of at atom-field interaction with known abnormal dispersion of refraction and the possible trajectories for pair particles are considered. %U http://arxiv.org/abs/physics/0102018v1