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Satellite meeting "Spectral Theory of Coulomb Systems - Symposion in honor of Heinz Siedentop on the occasion of his 60th birthday"
Organizers: Volker Bach (Braunschweig), Laszlo Erdös (Munich), Rupert Frank (Princeton), Simone Warzel (Munich)


Edgardo Stockmeyer (Munich, Germany): "Confinement - deconfinement transitions for two dimensional Dirac particles."
Saturday 20 April 2013, 17:00 - 17:35
Amphi Hermite


Abstract: In this talk I will consider a two-dimensional massless Dirac operator coupled to a magnetic field B and an electric potential V growing at infinity. I will present results concerning the characterization of the spectrum of the resulting operator H in terms of the relation between B and V at infinity. In particular, we find a sharp condition for the discreteness of the spectrum of H and a regime with dense pure point spectrum. This is joint work with Josef Mehringer.