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VERSION:2.0
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SUMMARY:Correlation functions in TT*-deformed conformal field theories
DTSTART:20231009T140000Z
DTEND:20231009T160000Z
DTSTAMP:20231207T224501Z
UID:indico-event-1321863@indico.cern.ch
DESCRIPTION:I will begin by reviewing the TT* deformation of two dimension
al field theories\, and its formulation in terms of Jackiw-Teitelboim grav
ity. Then I will discuss how to compute correlation functions of local ope
rators using this formulation\, in which the position of the operators is
defined using the dynamical coordinates of the formalism. I will focus on
the large-momentum behavior of the two-point function when the undeformed
theory is a conformal field theory. The main result (based on 2304.14091)
is that for momentum q it is given by |q|^{-q^2/\\pi |\\Lambda|}\, where 1
/|\\Lambda| is the deformation parameter. Interestingly\, the sign of the
exponent is different than previous computations which resummed the small
momentum expansion. The decay at large momentum manifests the non-locality
of the theory\, which also appears through the fact that operators with d
ifferent momentum require a different multiplicative renormalization\, and
that the large-momentum behavior of the correlation function on the torus
is different from the behavior mentioned above on the plane.\n\nhttps://i
ndico.cern.ch/event/1321863/
LOCATION:CERN 4/3-006 - TH Conference Room
URL:https://indico.cern.ch/event/1321863/
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