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Random Boundary Geometry and Gravity Dual of Tbar{T} Deformation

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arxiv 2003.06300 v1 pith:XBJCO2US submitted 2020-03-13 hep-th

Random Boundary Geometry and Gravity Dual of Tbar{T} Deformation

classification hep-th
keywords dualgravitydeformationenergygeometryapproachboundarycardy
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the random geometry approach to the $T\bar{T}$ deformation of 2d conformal field theory developed by Cardy and discuss its realization in a gravity dual. In this representation, the gravity dual of the $T\bar{T}$ deformation becomes a straightforward translation of the field theory language. Namely, the dual geometry is an ensemble of AdS$_3$ spaces or BTZ black holes, without a finite cutoff, but instead with randomly fluctuating boundary diffeomorphisms. This reflects an increase in degrees of freedom in the renormalization group flow to the UV by the irrelevant $T\bar{T}$ operator. We streamline the method of computation and calculate the energy spectrum and the thermal free energy in a manner that can be directly translated into the gravity dual language. We further generalize this approach to correlation functions and reproduce the all-order result with universal logarithmic corrections computed by Cardy in a different method. In contrast to earlier proposals, this version of the gravity dual of the $T\bar{T}$ deformation works not only for the energy spectrum and the thermal free energy but also for correlation functions.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Beyond Hagedorn: A Harmonic Approach to $T\bar{T}$-deformation

    hep-th 2026-04 unverdicted novelty 7.0

    TTbar-deformed CFT torus partition functions are expressed via spectral decomposition into Maass forms that deform simply, enabling analytic continuation beyond the Hagedorn singularity.

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

    hep-th 2026-06 unverdicted novelty 6.0

    Constructs deformed vertex operators in a topological string description of T T-bar deformed tensionless AdS3/CFT2 and computes their exact tree-level two-point functions.

  3. Butterflies in $\textrm{T}\overline{\textrm{T}}$ deformed anomalous CFT$_2$

    hep-th 2026-05 unverdicted novelty 6.0

    In TTbar-deformed anomalous CFT2 the chaos bound stays saturated while butterfly velocity depends nontrivially on deformation strength and anomaly, with a Hagedorn regime where the chaotic response turns complex.

  4. Correlators in $T\bar{T}$ and Root-$T\bar{T}$ Deformed CFTs

    hep-th 2026-04 unverdicted novelty 6.0

    Deformed two-point correlators in mixed TbarT/root-TbarT CFTs admit an explicit kernel representation as weighted averages of undeformed CFT correlators over conformal dimensions, with the two-point function obtained ...