%0 Journal Article %T One-loop vacuum polarization at $m¦Á^7$ order for the two center problem %A J. -Ph. Karr %A L. Hilico %A V. I. Korobov %J Physics %D 2014 %I arXiv %R 10.1103/PhysRevA.90.062516 %X We present calculations of the one-loop vacuum polarization contribution (Uehling potential) for the two-center problem in the NRQED formalism. The cases of hydrogen molecular ions ($Z_1=Z_2=1$) as well as antiprotonic helium ($Z_1=2$, $Z_2=-1$) are considered. Numerical results of the vacuum polarization contribution at $m\alpha^7$ order for the fundamental transitions $(v=0,L=0)\to(v'=1,L'=0)$ in H$_2^+$ and HD$^+$ are presented. %U http://arxiv.org/abs/1411.1894v1