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SUMMARY:RG flows in super-renormalizable scalar field theories
DTSTART:20210315T140000
DTEND:20210315T153000
DTSTAMP:20260929T050731Z
UID:529089b9af3006d6afbd4157a3bb917ddcb5c311cbc0fccca2f8d338
CATEGORIES:Conferences - Seminars
DESCRIPTION:Marco Serone (SISSA)\nMassless scalar field theories in d<4 su
 ffer from IR divergences that hinder a direct perturbative approach. On t
 he other hand\, massive theories are well-defined and their critical regi
 me can be recovered by Borel resumming the perturbative expansion. Within
  this approach\, we show how the phase diagram of \\phi^4 models in two an
 d three dimensions depend exactly on a class of renormalization schemes. 
 In particular\, we show that the same renormalization scheme\ncan admit tw
 o equivalent descriptions\, non-perturbatively related to each other (a so
 rt of duality) and that fixed points can merge and move into the comple
 x plane in complex conjugate pairs\, making the phase transition no longe
 r visible from a classically unbroken or broken phase.\n\nRecording availa
 ble at: https://mediaspace.epfl.ch/channel/High+Energy+Theory+Seminars/32
 518
LOCATION:Zoom https://epfl.zoom.us/j/83627661477
STATUS:CONFIRMED
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