DOI: 10.1007/jhep10(2026)224 ISSN: 1029-8479

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

Andrea Dei, Kiarash Naderi
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A
bstract

Motivated by earlier approaches, we develop a worldsheet framework for computing correlation functions in the single trace

$$ T\overline{T} $$ T T ¯
-deformed tensionless AdS 3 /CFT 2 duality. By describing the deformed bulk theory as a Berkovits-Vafa
$$ \mathcal{N} $$ 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
$$ T\overline{T} $$ T T ¯
-deformed two-point functions obtained from alternative worldsheet approaches, JT gravity, and perturbative field theory computations.

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