QED Fermi Fields as Operator-Valued Distributions and Anomalies
نویسندگان
چکیده
منابع مشابه
QED Fermi-Fields as Operator Valued Distributions and Anomalies
The treatment of fields as operator valued distributions (OPVD) is recalled with the emphasis on the importance of causality following the work of Epstein and Glaser. Gauge invariant theories demand the extension of the usual translation operation on OPVD, thereby leading to a generalized QED formulation. At D=2 the solvability of the Schwinger model is totally preserved. At D=4 the paracompact...
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Following Epstein-Glaser’s work we show how a QFT formulation based on operator valued distributions (OPVD) with adequate test functions treats original singularities of propagators on the diagonal in a mathematically rigourous way.Thereby UV and/or IR divergences are avoided at any stage, only a finite renormalization finally occurs at a point related to the arbitrary scale present in the test...
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ژورنال
عنوان ژورنال: Few-Body Systems
سال: 2005
ISSN: 0177-7963,1432-5411
DOI: 10.1007/s00601-004-0085-8