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SUMMARY:Topological gauging and non-relevant deformations of Quantum Field
Theories
DTSTART;VALUE=DATE-TIME:20221117T130000Z
DTEND;VALUE=DATE-TIME:20221117T140000Z
DTSTAMP;VALUE=DATE-TIME:20230204T222000Z
UID:indico-event-32607@agenda.infn.it
DESCRIPTION:Speakers: Stefano Negro (NYU)\nIn the last few years\, much at
tention has been devoted to the study of a peculiar class of irrelevant de
formations of 2-dimensional Quantum Field Theories\, known as “Solvable
Irrelevant Deformations”. The poster child of these is the celebrated
“TTbar deformation”. They display unusual properties in the UV\, which
can be described exactly\, their irrelevant nature notwithstanding. For t
his reason they represent a sensible extension of Quantum Field Theory bey
ond the Wilsonian paradigm and have attracted a considerable attention fr
om the high energy theory community. The property of being solvable is sha
red with a wider class of deformations\, constructed out of pairs of conse
rved currents. In general these are marginal deformations\, thus presenti
ng very different UV properties. Nonetheless their structures are similar
to the TTbar ones\, hinting at the existence of a universal description.\n
\nIn this talk I will present a very general framework that accommodates b
oth solvable irrelevant and solvable marginal deformations\, which amounts
to a “topological gauging” of the symmetries of the system. Through s
imple path integral computations\, I will recover the main features of th
ese theories and show their equivalence to TST and Yang-Baxter deformation
s. For the case of TTbar\, the topological gauging perspective explains th
e previously not understood relation to field theory in non-commutative Mi
nkowski space-time and to the centrally extended Poincaré algebra.\nhttps
://agenda.infn.it/event/32607/
LOCATION:324
URL:https://agenda.infn.it/event/32607/
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