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Holomorphic extremal surfaces for pseudoentropy in dS/CFT

  • Giorgos Anastasiou
  • Ignacio J. Araya
  • Avijit Das
  • Javier Moreno
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Abstract

We formulate the extremization problem for codimension-two hypersurfaces in de Sitter space in holomorphic coordinates, with real anchoring conditions at future infinity. The resulting equation (KI=0) describes complex bulk realizations extending the usual piecewise Hartle--Hawking construction. We compute holographic pseudoentropy for harmonic deformations of spherical regions of arbitrary size and dimension, confirming its universal expansion through second order in the deformation parameter. The result is independent of the integration contour within each homology class on the complexified extremal surface. Inequivalent classes, labeled by an integer associated with a discrete global-coordinate isometry, differ by a sign of the universal term in odd boundary dimensions and by real finite shifts in even dimensions. For conical defects in dS3 parametrized by a Schwarzschild-dS mass, we also verify the first law of pseudoentropy and the persistence of contour degeneracy within each homology class.

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Cite

BibTeXRIS
BibTeX
@misc{anastasiou2026holomorphic,
  title = {{Holomorphic extremal surfaces for pseudoentropy in dS/CFT}},
  author = {Giorgos Anastasiou and Ignacio J. Araya and Avijit Das and Javier Moreno},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.24698},
  eprint = {2610.24698},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.24698},
}
RIS
TY  - UNPB
TI  - Holomorphic extremal surfaces for pseudoentropy in dS/CFT
AU  - Giorgos Anastasiou
AU  - Ignacio J. Araya
AU  - Avijit Das
AU  - Javier Moreno
PY  - 2026
DA  - 2026/10/17
PB  - arXiv
DO  - 10.48550/arxiv.2610.24698
UR  - https://arxiv.org/abs/2610.24698
AB  - We formulate the extremization problem for codimension-two hypersurfaces in de Sitter space in holomorphic coordinates, with real anchoring conditions at future infinity. The resulting equation (K^I=0) describes complex bulk realizations extending the usual piecewise Hartle--Hawking construction. We compute holographic pseudoentropy for harmonic deformations of spherical regions of arbitrary size and dimension, confirming its universal expansion through second order in the deformation parameter. The result is independent of the integration contour within each homology class on the complexified extremal surface. Inequivalent classes, labeled by an integer associated with a discrete global-coordinate isometry, differ by a sign of the universal term in odd boundary dimensions and by real finite shifts in even dimensions. For conical defects in dS_3 parametrized by a Schwarzschild-dS mass, we also verify the first law of pseudoentropy and the persistence of contour degeneracy within each homology class.
ER  -