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  • Nonperturbative results for the mass dependence of the QED fermion determinant 

    FRY, MICHAEL PHILIP (American Physical Society, 2010)
    The fermion determinant in four-dimensional quantum electrodynamics in the presence of O(2)XO(3) symmetric background gauge fields with a nonvanishing global chiral anomaly is considered. It is shown that the leading mass ...
  • Stability of QED 

    FRY, MICHAEL PHILIP (2011)
    It is shown for a class of random, time-independent, square-integrable, three-dimensional magnetic fields that the one-loop effective fermion action of four-dimensional QED increases faster than a quadratic in B in the ...