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SUMMARY:Georgios Karananas (LMU\, Munich)
DTSTART:20210217T113000Z
DTEND:20210217T123000Z
DTSTAMP:20260423T041818Z
UID:HETatNTUA/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/HETatNTUA/6/
 ">Spontaneous Conformal Symmetry Breaking in the Fishnet CFT</a>\nby Georg
 ios Karananas (LMU\, Munich) as part of High Energy Theory\, Gravity  and 
 Cosmology Seminars @ NTUA\n\n\nAbstract\nQuantum field theories with exact
  but spontaneously broken conformal invariance have an intriguing feature:
  their vacuum energy is equal to zero. Up to now\, the only known ultravio
 let complete theories where conformal symmetry can be spontaneously broken
  were associated with supersymmetry\, with the most prominent example bein
 g the N =4 SYM. Interestingly\, its non-supersymmetric descendant\, the ``
 Fishnet theory\,'' supports at the classical level a rich set of flat dire
 ctions along which conformal symmetry is spontaneously broken. At least pe
 rturbatively\, some of these vacua survive in the full quantum theory - in
  the planar limit - without any fine tuning. As a result\, the vacuum ener
 gy vanishes along these flat directions\, providing the first non-supersym
 metric example of a four-dimensional quantum field theory with “natural
 ” breaking of conformal symmetry.\n
LOCATION:https://researchseminars.org/talk/HETatNTUA/6/
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