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arXiv · 2606.12172

$\boldsymbol{T\overline{T}}$ correlators from tensionless strings

Andrea Dei·Kiarash Naderi
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Abstract

Motivated by earlier approaches, we develop a worldsheet framework for computing correlation functions in the single trace $T \overline{T}$-deformed tensionless AdS$_3$/CFT$_2$ duality. By describing the deformed bulk theory as a Berkovits-Vafa $\mathcal{N}=4$ topological string, we obtain a consistent definition of physical states and correlation functions, yielding a tractable setup for testing aspects of holography beyond AdS/CFT. We construct deformed physical vertex operators and compute their tree-level two-point functions exactly. We discuss the relation of our results to previous proposals for $T \overline{T}$-deformed two-point functions obtained from alternative worldsheet approaches, JT gravity, and perturbative field theory computations.

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Andrea Dei, Kiarash Naderi. 2026-06-10. $\boldsymbol{T\overline{T}}$ correlators from tensionless strings. https://arxiv.org/abs/2606.12172

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