Inequivalent light-cone gauge-fixings of strings on $AdS_n \times S^n$ backgrounds

Fuente: arXiv
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Auteurs principaux: Borsato, Riccardo, Driezen, Sibylle, Hoare, Ben, Retore, Ana L., Seibold, Fiona K.
Format: Preprint
Publié: 2023
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author Borsato, Riccardo
Driezen, Sibylle
Hoare, Ben
Retore, Ana L.
Seibold, Fiona K.
author_facet Borsato, Riccardo
Driezen, Sibylle
Hoare, Ben
Retore, Ana L.
Seibold, Fiona K.
contents Light-cone gauge-fixed sigma-models on $AdS_n\times S^n$ backgrounds play an important role in the integrability formulation of the AdS/CFT correspondence. The string spectrum of the sigma-model is gauge-independent, however the Hamiltonian and scattering matrix of the transverse worldsheet fields are not. We study how these change for a large family of inequivalent light-cone gauges, which are interpreted as $T\bar{T}$, $\tilde{J}T_τ$, $JT_σ$ and $J^τ$ deformations. We investigate the moduli space of equivalent light-cone gauges and, specialising to $AdS_5 \times S^5$, compute the different light-cone gauge symmetry algebras, well-known to be $\mathfrak{psu}(2|2)^{\oplus 2} \oplus \mathfrak{u}(1)^{\oplus 2}$ for the standard gauge-fixing. Many integrable deformations require a non-standard light-cone gauge, hence our classification and analysis of inequivalent gauges will be important for analysing such models.
format Preprint
id arxiv_https___arxiv_org_abs_2312_17056
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Inequivalent light-cone gauge-fixings of strings on $AdS_n \times S^n$ backgrounds
Borsato, Riccardo
Driezen, Sibylle
Hoare, Ben
Retore, Ana L.
Seibold, Fiona K.
High Energy Physics - Theory
Light-cone gauge-fixed sigma-models on $AdS_n\times S^n$ backgrounds play an important role in the integrability formulation of the AdS/CFT correspondence. The string spectrum of the sigma-model is gauge-independent, however the Hamiltonian and scattering matrix of the transverse worldsheet fields are not. We study how these change for a large family of inequivalent light-cone gauges, which are interpreted as $T\bar{T}$, $\tilde{J}T_τ$, $JT_σ$ and $J^τ$ deformations. We investigate the moduli space of equivalent light-cone gauges and, specialising to $AdS_5 \times S^5$, compute the different light-cone gauge symmetry algebras, well-known to be $\mathfrak{psu}(2|2)^{\oplus 2} \oplus \mathfrak{u}(1)^{\oplus 2}$ for the standard gauge-fixing. Many integrable deformations require a non-standard light-cone gauge, hence our classification and analysis of inequivalent gauges will be important for analysing such models.
title Inequivalent light-cone gauge-fixings of strings on $AdS_n \times S^n$ backgrounds
topic High Energy Physics - Theory
url https://arxiv.org/abs/2312.17056