1205.2038 (Carlos L. Benavides-Riveros et al.)

The lowest excited configuration of harmonium    [PDF]

Carlos L. Benavides-Riveros, José M. Gracia-Bondía, Joseph C. Várilly

The "harmonium model" (or "Moshinsky atom") is usually regarded as an exactly solvable laboratory bench for quantum chemistry. In practice, only the ground state for the system has been considered heretofore. In this work we exhaustively study the lowest excited (spin triplet) state of harmonium. The task is made easier by working with Wigner quasiprobabilities on phase space.

View original: http://arxiv.org/abs/1205.2038