TY - JOUR
AB - We study the energy levels of a single particle in a homogeneous magnetic field and in an axially symmetric external potential. For potentials that are superharmonic off the central axis, we find a general 'pseudoconcave' ordering of the ground state energies of the Hamiltonian restricted to the sectors with fixed angular momentum. The physical applications include atoms and ions in strong magnetic fields. There the energies are monotone increasing and concave in angular momentum. In the case of a periodic chain of atoms, the pseudoconcavity extends to the entire lowest band of Bloch functions.
AU - Baumgartner, Bernhard
AU - Robert Seiringer
ID - 2343
IS - 3
JF - Letters in Mathematical Physics
TI - On the ordering of energy levels in homogeneous magnetic fields
VL - 54
ER -