Work

Beta deformed sigma model and strong deformation coupling limit

Year: 2024

Type: article

Abstract: A bstract We study the beta deformation of the superstring in AdS 5 × S 5 at all orders in the deformation parameter, employing the pure spinor formalism. This is necessary in order to study the regime of strong deformation parameter, which in the field side is related to fishnet theories. We compare the pure spinor sigma model approach to the previously known supergravity description. We find a complete agreement. Moreover, the BRST structure of the worldsheet model provides a natural explanation of the peculiar features of the worldsheet model in the fishnet limit. In particular, we study the degeneracy of the sigma model Lagrangian. We show that the BRST structure is responsible for a particularly “tame” degeneration of the fishnet sigma-model.

Source: Journal of High Energy Physics

DOI: 10.1007/jhep09(2024)120

Author: Eggon Viana

Institution: Universidade Estadual Paulista (Unesp)

Language: English

Topic: Black Holes and Theoretical Physics

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Abdus Salam International Centre for Theoretical Physics, Fundação de Amparo à Pesquisa do Estado de São Paulo, ICTP South American Institute for Fundamental Research

Awards: G295657101, Gauge / gravity duality