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SUMMARY:Nguyen Viet Dang (Université de Lyon 1)
DTSTART:20200611T100000Z
DTEND:20200611T103000Z
DTSTAMP:20260416T065636Z
UID:IML-SMR/12
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/IML-SMR/12/"
 >Renormalization of determinant lines in Quantum Field Theory</a>\nby Nguy
 en Viet Dang (Université de Lyon 1) as part of Scattering\, microlocal an
 alysis and renormalisation\n\n\nAbstract\nIn the present talk\, we will di
 scuss how we understand a three page note from Quillen's notebook where he
  tries to make sense of the technique of "adding counterterms to the Lagra
 ngian to remove the infinities" used in renormalized perturbation theory. 
 Then we explain what the counterterms are in the situation of a quantized 
 fermion field\, interacting with a\ngauge field treated as an external fie
 ld. Our discussion will also be very much inspired by I.M Singer's lecture
  on families of Dirac operators with application to physics.\n
LOCATION:https://researchseminars.org/talk/IML-SMR/12/
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