The He${}_2^{+}$ molecular ion and the He${}^{-}$ atomic ion in strong magnetic fields

J. C. Lopez Vieyra, A. V. Turbiner

We study the question about existence i.e. stability with respect to dissociation of the spin-quartet, permutation- and reflection-symmetric ${}^4(-3{)}_g^{+}$ ($S_z=-3/2,M=-3$) state…