Chiral limit of the two-dimensional fermionic determinant in a general magnetic field
نویسنده
چکیده
We consider the effective action for massive two-dimensional QED in flat Euclidean space-time in the background of a general square-integrable magnetic field with finite range. It is shown that its small mass limit is controlled by the chiral anomaly. New results for the low-energy scattering of electrons in 2+1 dimensions in static, inhomogenous magnetic fields are also presented. PACS numbers: 12.20.Ds, 11.10.Kk, 03.65.Nk aElectronic mail: [email protected] 1
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