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Conformal Perturbation Theory and Tachyon-Dilaton Eschatology via String Fields

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arxiv 2403.14544 v2 pith:GBT2BX63 submitted 2024-03-21 hep-th

Ben Mazel , Joshua Sandor , Charles Wang , Xi Yin This is my paper · ORCID
classification hep-th
keywords stringtheoryconformalfieldperturbationrenormalizationsolutiontachyon-dilaton
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We analyze deformations of two-dimensional conformal field theory (CFT) from the perspective of classical bosonic closed string field theory (SFT). The latter can be viewed as a version of Wilsonian renormalization group (RG) improved conformal perturbation theory, where the renormalization scheme is defined through the choice of string vertices in the construction of SFT. Furthermore, the CFT data at the RG fixed point can be recovered from the spectrum and amplitudes of string field fluctuations. As applications, we construct the Horowitz-Polchinski "string star" solution in SFT, and a solution of tachyon-dilaton condensation that deforms the noncompact boson to minimal models by creating a pair of "Runkel-Watts walls".

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Cited by 4 Pith papers

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

  1. String stars in $d\geq 7$

    hep-th 2024-12 conditional novelty 7.0 of 10

    String stars in d≥7 exist as higher-dimensional counterparts of Horowitz-Polchinski solutions, with perturbative d=7 solutions and normalizable candidates in d>7.

  2. The Runkel-Watts string

    hep-th 2026-07 conditional novelty 6.0 of 10

    The Runkel-Watts string is a solvable family of two-dimensional string theories whose all-genus amplitudes are generated by SU(2) Yang-Mills TQFT data combined with VMS quantum volumes, and it has a dual matrix-integr...

  3. On the $AdS_5\times S^5$ Solution of Superstring Field Theory

    hep-th 2025-07 conditional novelty 6.0 of 10

    The AdS5 x S5 background of type IIB superstring field theory is constructed explicitly to third order in the large-radius expansion, with maximal super-isometry verified to second order and the massless RR axion iden...

  4. Diffeomorphism in Closed String Field Theory

    hep-th 2025-04 conditional novelty 6.0 of 10

    Spacetime diffeomorphisms in closed string field theory are realized as L-infinity gauge transformations, with an explicit leading-order dictionary between metric, B-field, dilaton, and flat-vertex string fields, plus...

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