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[en] A Mourre-type estimate is derived for the pseudorelativistic Brown-Ravenhall operator describing an atomic electron in a specific magnetic field of constant direction. As a consequence it is shown that its point spectrum is finite in R/{m} if the Coulomb potential strength γ is below 1/2. An extension of the Mourre-type estimate to the exact block-diagonalized Dirac operator is also discussed
Journal
Journal of Physics. A, Mathematical and Theoretical (Online); ISSN 1751-8121; 
; v. 41(27); [17 p.]
; v. 41(27); [17 p.]