H2 molecule in strong magnetic fields
  The Pauli-Hamiltonian of a molecule with fixed nuclei in a strong constant magnetic field is asymptotic, in norm-resolvent sense, to an effective Hamiltonian which has the form of a multi-particle Schr\"odinger operator with interactions given by one-dimensional \delta-potentials. We study this effective Hamiltonian in the case of the H2 -molecule and establish existence of the ground state. We also show that the inter-nuclear equilibrium distance tends to 0 as the field-strength tends to infinity. 
Mathieu Beau (STP-DIAS), Rafael Benguria, Raymond Brummelhuis   (LM-Reims), Pierre Duclos (CPT)
math-ph math.MP physics.atom-ph