Laboratoire Charles Coulomb UMR 5221 CNRS/UM2 (L2C)


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(1) Presentation(s)


Lun. 11/03/2019 14:00 Grande Ourse, Bâtiment 13, Etage 1

LE FLOCH Bruno (ENS, Paris)
Solving TTbar-like integrable deformations of 2d CFT

(Théorie des Champs & Physique Mathématique)


The TTbar deformation is a universal irrelevant deformation of arbitrary 2d QFTs. It preserves symmetries (hence integrability when starting from an integrable theory), and energy levels on a circle obey the Burgers equation as a function of the deformation parameter. I will explain how we generalized this differential equation to antisymmetric combinations of conserved currents and/or stress-tensor: energy levels and charges also obey a hydrodynamic transport equation. We solve it for deformations of CFTs. Interestingly, the Virasoro or Kac-Moody symmetries are realized non-locally in deformed CFTs. Time-permitting I will mention supersymmetric or higher-dimensional versions.

Pour plus d'informations, merci de contacter Alexandrov S.