2-6 September 2019
Institut de Mathématiques de Bourgogne
Europe/Paris timezone

Conformal Fishnet Theory

3 Sep 2019, 09:00
45m
Amphi Gevrey ()

Amphi Gevrey

Speaker

Vladimir Kazakov (Ecole Normale Superieure, Univ. Sorbonne)

Description

I will review the propreties and recent results for conformal fishnet theory (FCFT) which was proposed by O.Gurdogan and myself as a special double scaling limit of gamma-twisted N=4 SYM theory. FCFT, in its simplest, bi-scalar version, is a UV finite strongly coupled 4-dimensionl logarithmic CFT dominated by planar fishnet Feynman graphs (of the shape of regular square lattice). FCFT inherits the planar integrability of N=4 SYM which becomes manifest in this case: the fishnet graphs can be mapped on the SO(2,4) integrable spin chain (A.Zamolodchikov 1980). The D-dimensional generalization of FCFT, with SO(2,D) conformal symmetry can be also provided. A remarkable property of FCFT is the possibility of spontaneous symmetry breaking, which is not lifted by quantum corrections. I will also discuss the exact computation of certain anomalous dimensions and 4-point correlators, and of related fishnet Feynman graphs (of "wheel" or "spiral" type), using the quantum integrability tools: asymptotic and thermodynamic Bethe ansatz and quantum spectral curve.

Primary author

Vladimir Kazakov (Ecole Normale Superieure, Univ. Sorbonne)

Presentation Materials