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Beta deformed sigma model and strong deformation coupling limit

Full text
Author(s):
Viana, Eggon
Total Authors: 1
Document type: Journal article
Source: Journal of High Energy Physics; v. N/A, n. 9, p. 31-pg., 2024-09-19.
Abstract

We study the beta deformation of the superstring in AdS5 x S5 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. (AU)

FAPESP's process: 22/00940-2 - Cohomological methods in AdS/CFT correspondence
Grantee:Eggon Viana Teixeira Galvão
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 19/21281-4 - Gauge / gravity duality
Grantee:Horatiu Stefan Nastase
Support Opportunities: Research Projects - Thematic Grants