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PreprintCC BY 4.0arXiv

Strong coupling spectrum of AdS3× S3 from string field theory

  • Luis F. Alday
  • Shai M. Chester
  • Kiarash Naderi
  • De-liang Zhong
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Abstract

We consider type IIB string theory on AdS3× S3× 𝕋4 in a large AdS radius expansion at arbitrary values of the relative RR and NS-NS fluxes. We develop a method for computing scaling dimensions in the dual CFT in this limit by combining a string field theory calculation, valid at finite quantized NS-NS flux but perturbative in RR flux, with a finite mixed-flux ansatz, which is constrained by worldsheet parity and motivated by classical string solutions. We apply the method to three families of states. In the pure-RR limit, our results agree both with a family of states computed using the worldsheet bootstrap and with another family computed using integrability.

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Cite

BibTeXRIS
BibTeX
@misc{alday2026strong,
  title = {{Strong coupling spectrum of $\mathrmAdS_3\times \mathrmS^3$ from string field theory}},
  author = {Luis F. Alday and Shai M. Chester and Kiarash Naderi and De-liang Zhong},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2609.19266},
  eprint = {2609.19266},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.19266},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Strong coupling spectrum of AdS_3× S^3 from string field theory
AU  - Luis F. Alday
AU  - Shai M. Chester
AU  - Kiarash Naderi
AU  - De-liang Zhong
PY  - 2026
DA  - 2026/10/21
PB  - arXiv
DO  - 10.48550/arxiv.2609.19266
UR  - https://arxiv.org/abs/2609.19266
AB  - We consider type IIB string theory on AdS_3× S^3× 𝕋^4 in a large AdS radius expansion at arbitrary values of the relative RR and NS-NS fluxes. We develop a method for computing scaling dimensions in the dual CFT in this limit by combining a string field theory calculation, valid at finite quantized NS-NS flux but perturbative in RR flux, with a finite mixed-flux ansatz, which is constrained by worldsheet parity and motivated by classical string solutions. We apply the method to three families of states. In the pure-RR limit, our results agree both with a family of states computed using the worldsheet bootstrap and with another family computed using integrability.
ER  -