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math-ph2005
Absolutely continuous spectrum for the Anderson model on a tree: a geometric proof of Klein's theorem
Richard Froese, David Hasler, Wolfgang Spitzer
We give a new proof of a version of Klein's theorem on the existence of absolutely continuous spectrum for the Anderson model on the Bethe Lattice at weak disorder.
math-ph2004
The Independence on Boundary Conditions for the Thermodynamic Limit of Charged Systems
David Hasler, Jan Philip Solovej
We study systems containing electrons and nuclei. Based on the fact that the thermodynamic limit exists for systems with Dirichlet boundary conditions, we prove that the same limit…