Abstract
The hydrogen molecule in the presence of a homogeneous magnetic field is investigated for the parallel configuration in the complete regime of field strengths a.u. Up to seven excitations are studied for gerade as well as ungerade spin triplet states of symmetry with a high accuracy. The evolution of the potential-energy curves for the individual states with increasing field strength as well as the overall behavior of the spectrum are discussed in detail. A typical feature of many potential-energy curves is the strong increase of the dissociation energy and decrease of the corresponding equilibrium internuclear distance in the high-field regime. Strong qualitative changes of the potential energies are found particularly within the regime a.u., where we observe among other things the field-dependent evolution of patterns of avoided crossings.
- Received 17 October 2000
DOI:https://doi.org/10.1103/PhysRevA.64.023410
©2001 American Physical Society