He${}_2^{3+}$ and HeH${}^{2+}$ molecular ions in a strong magnetic field: the Lagrange mesh approach

Horacio Olivares Pilón

Accurate calculations for the ground state of the molecular ions He${}_2^{3+}$ and HeH${}^{2+}$ placed in a strong magnetic field $B\gtrsim 10^2$ a.u. ($\approx 2.35\times 10^{11}$G…