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arXiv · 0709.1034

Heat kernel estimates and spectral properties of a pseudorelativistic operator with magnetic field

D. H. Jakubassa-Amundsen
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Abstract

Based on the Mehler heat kernel of the Schroedinger operator for a free electron in a constant magnetic field an estimate for the kernel of E_A is derived, where E_A represents the kinetic energy of a Dirac electron within the pseudorelativistic no-pair Brown-Ravenhall model. This estimate is used to provide the bottom of the essential spectrum for the two-particle Brown-Ravenhall operator, describing the motion of the electrons in a central Coulomb field and a constant magnetic field, if the central charge is restricted to Z below or equal 86.

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D. H. Jakubassa-Amundsen. 2008-04-04. Heat kernel estimates and spectral properties of a pseudorelativistic operator with magnetic field. https://doi.org/10.1063/1.2844615

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