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PreprintarXiv licencearXiv

A 1/4-BPS chiral algebra in D1D5: from charge concentration to BPS chaos

  • Alexandre Belin
  • Suzanne Bintanja
  • Alessandra Gnecchi
  • Damian R. Musk
  • Kyriakos Papadodimas
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Abstract

The D1D5 CFT exhibits a charge concentration puzzle for BPS states, similar to, but simpler than, that of 𝒩=4 SYM. We consider the chiral algebra of 1/4-BPS operators in the D1D5 CFT arising from a supercharge cohomology, and the resulting rational correlators. Using crossing symmetry and this chiral algebra, we establish a non-perturbative proof of the existence of a family of 1/4-BPS states away from the charge concentration locus for general coupling and finite central charge. We further discuss possible implications for BPS chaos in the D1D5 CFT and compute a late-time BPS plateau at the orbifold point.

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Cite

BibTeXRIS
BibTeX
@misc{belin202614bps,
  title = {{A 1/4-BPS chiral algebra in D1D5: from charge concentration to BPS chaos}},
  author = {Alexandre Belin and Suzanne Bintanja and Alessandra Gnecchi and Damian R. Musk and Kyriakos Papadodimas},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2609.00131},
  eprint = {2609.00131},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.00131},
}
RIS
TY  - UNPB
TI  - A 1/4-BPS chiral algebra in D1D5: from charge concentration to BPS chaos
AU  - Alexandre Belin
AU  - Suzanne Bintanja
AU  - Alessandra Gnecchi
AU  - Damian R. Musk
AU  - Kyriakos Papadodimas
PY  - 2026
DA  - 2026/10/08
PB  - arXiv
DO  - 10.48550/arxiv.2609.00131
UR  - https://arxiv.org/abs/2609.00131
AB  - The D1D5 CFT exhibits a charge concentration puzzle for BPS states, similar to, but simpler than, that of 𝒩=4 SYM. We consider the chiral algebra of 1/4-BPS operators in the D1D5 CFT arising from a supercharge cohomology, and the resulting rational correlators. Using crossing symmetry and this chiral algebra, we establish a non-perturbative proof of the existence of a family of 1/4-BPS states away from the charge concentration locus for general coupling and finite central charge. We further discuss possible implications for BPS chaos in the D1D5 CFT and compute a late-time BPS plateau at the orbifold point.
ER  -