Comments on integrability in the symmetric orbifold

S Frolov, A Sfondrini - Journal of High Energy Physics, 2024 - Springer
A bstract We present a map between the excitation of the symmetric-product orbifold CFT of
T 4, and of the worldsheet-integrability description of AdS 3× S 3× T 4 of Lloyd, Ohlsson Sax …

Tensionless AdS3/CFT2 and single trace

A Dei, B Knighton, K Naderi, S Sethi - Journal of High Energy Physics, 2024 - Springer
A bstract One of the few cases of AdS/CFT where both sides of the duality are under good
control relates tensionless k= 1 strings on AdS 3 to a two-dimensional symmetric product …

Inequivalent light-cone gauge-fixings of strings on backgrounds

R Borsato, S Driezen, B Hoare, AL Retore, FK Seibold - Physical Review D, 2024 - APS
Light-cone gauge-fixed sigma models on AdS n× S n backgrounds play an important role in
the integrability formulation of the AdS/CFT correspondence. The string spectrum of the …

Matrix Theory Reloaded: A BPS Road to Holography

CDA Blair, J Lahnsteiner, NA Obers, Z Yan - arXiv preprint arXiv …, 2024 - arxiv.org
We revisit the decoupling limits that lead to matrix theories on D-branes. We highlight the
BPS nature of these limits, in which the target space geometry becomes non-Lorentzian and …

Elliptic deformations of the AdS3× S3× T4 string

B Hoare, AL Retore, FK Seibold - Journal of High Energy Physics, 2024 - Springer
A bstract With the aim of investigating the existence of an integrable elliptic deformation of
strings on AdS 3× S 3× T 4, we compute the tree-level worldsheet S-matrix of the elliptically …

Integrable higher-spin deformations of sigma models from auxiliary fields

D Bielli, C Ferko, L Smith… - arXiv preprint arXiv …, 2024 - arxiv.org
We construct a new infinite family of integrable deformations of the principal chiral model
(PCM) parameterized by an interaction function of several variables, which extends the …

Auxiliary Field Sigma Models and Yang-Baxter Deformations

D Bielli, C Ferko, L Smith… - arXiv preprint arXiv …, 2024 - arxiv.org
We combine the Yang-Baxter (YB) and bi-Yang-Baxter (bi-YB) deformations with higher-spin
auxiliary field deformations to construct multi-parameter families of integrable deformations …

Auxiliary field deformations of (semi-) symmetric space sigma models

D Bielli, C Ferko, L Smith… - arXiv preprint arXiv …, 2024 - arxiv.org
We generalize the auxiliary field deformations of the principal chiral model (PCM) introduced
in arXiv: 2405.05899 and arXiv: 2407.16338 to sigma models whose target manifolds are …

Lectures in Quantum Gravity

I Basile, L Buoninfante, F Di Filippo, B Knorr… - arXiv preprint arXiv …, 2024 - arxiv.org
Formulating a quantum theory of gravity lies at the heart of fundamental theoretical physics.
This collection of lecture notes encompasses a selection of topics that were covered in six …

String theory in twistor space and minimal tension holography

N McStay, R Reid-Edwards - arXiv preprint arXiv:2411.08836, 2024 - arxiv.org
Explicit examples of the AdS/CFT correspondence where both bulk and boundary theories
are tractable are hard to come by, but the minimal tension string on $ AdS_3\times S …