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SUMMARY:Energy transport in 2D holographic conformal and non-conformal int
 erfaces - Giuseppe Policastro (École Normale Supérieure)
DTSTART:20251007T090000Z
DTEND:20251007T103000Z
UID:TALK237622@talks.cam.ac.uk
DESCRIPTION:Defects and interfaces are the subjects of intense study in di
 fferent contexts\, as they provide useful probes&nbsp\; quantum field theo
 ry and condensed-matter systems.&nbsp\; In the case of two-dimensional con
 formal interfaces\, universal properties are encoded in the flux of energy
  transmitted and reflected for an excitation scattering with the interface
 . I will first discuss the study of energy trasport across interfaces in t
 he holographic setup\, using the minimal holographic model of a brane in A
 dS3. I will then discuss&nbsp\; the extension to a class of non-conformal 
 defects obtained by turning on a TTbar-deformation of the CFT\, as well as
  a class of defects obtained by allowing a time-reparametrization at the i
 nterface\, corresponding to solutions of Nambu-Goto equation in the limit 
 of a small tension brane. The latter setup can also be further generalized
  to multi-way junctions between CFTs.
LOCATION:Seminar Room 2\, Newton Institute
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