Universality of pseudoentropy for deformed spheres in dS/CFT
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866915647872565248 |
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| author | Anastasiou, Giorgos Araya, Ignacio J. Das, Avijit Moreno, Javier |
| author_facet | Anastasiou, Giorgos Araya, Ignacio J. Das, Avijit Moreno, Javier |
| contents | We determine the universal part of pseudoentropy for small shape deformations of spherical entangling surfaces in the context of de Sitter/conformal field theory (dS/CFT) correspondence. The leading correction at quadratic order in the deformation parameter is controlled by the coefficient of the two-point stress-energy tensor correlator, $C_T$, of the non-unitary dual CFT, and it retains the sign of the unperturbed result, thereby establishing the sphere as a local extremum. The same structure holds in higher-curvature theories, as we check explicitly for quadratic curvature gravity, suggesting a universal behavior across non-unitary holographic CFTs. Our findings extend the Mezei formula to the dS/CFT setting and indicate that the shape dependence of pseudoentropy in dS holography resembles that of entanglement entropy in AdS space. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_02164 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Universality of pseudoentropy for deformed spheres in dS/CFT Anastasiou, Giorgos Araya, Ignacio J. Das, Avijit Moreno, Javier High Energy Physics - Theory We determine the universal part of pseudoentropy for small shape deformations of spherical entangling surfaces in the context of de Sitter/conformal field theory (dS/CFT) correspondence. The leading correction at quadratic order in the deformation parameter is controlled by the coefficient of the two-point stress-energy tensor correlator, $C_T$, of the non-unitary dual CFT, and it retains the sign of the unperturbed result, thereby establishing the sphere as a local extremum. The same structure holds in higher-curvature theories, as we check explicitly for quadratic curvature gravity, suggesting a universal behavior across non-unitary holographic CFTs. Our findings extend the Mezei formula to the dS/CFT setting and indicate that the shape dependence of pseudoentropy in dS holography resembles that of entanglement entropy in AdS space. |
| title | Universality of pseudoentropy for deformed spheres in dS/CFT |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2512.02164 |