Thermal superpotential and thermodynamics of neutral hairy black holes in extended SUGRA
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arXiv
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| Autori principali: | , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866911260824567808 |
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| author | Anabalòn, Andrès Astefanesei, Dumitru Choque, David Gallerati, Antonio |
| author_facet | Anabalòn, Andrès Astefanesei, Dumitru Choque, David Gallerati, Antonio |
| contents | We present a family of exact neutral hairy black-hole solutions with spherical horizon topology in extended supergravity with Fayet--Iliopoulos terms. We consider a consistent dilaton truncation and analyze in detail a sector where the magnetic part of the FI terms vanishes. Using appropriate dilaton counterterms, we compute the thermodynamic quantities and show the existence of Hawking--Page phase transitions. As a holographic application, we derive the thermal superpotential in closed form and use it as a counterterm, explicitly demonstrating that no additional finite counterterms are required to regularize the Euclidean action and the quasi-local stress tensor. The dual stress tensor matches that of a thermal gas of massless particles and is consistent with mixed dilaton boundary conditions that preserve conformal symmetry. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_04428 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Thermal superpotential and thermodynamics of neutral hairy black holes in extended SUGRA Anabalòn, Andrès Astefanesei, Dumitru Choque, David Gallerati, Antonio High Energy Physics - Theory General Relativity and Quantum Cosmology We present a family of exact neutral hairy black-hole solutions with spherical horizon topology in extended supergravity with Fayet--Iliopoulos terms. We consider a consistent dilaton truncation and analyze in detail a sector where the magnetic part of the FI terms vanishes. Using appropriate dilaton counterterms, we compute the thermodynamic quantities and show the existence of Hawking--Page phase transitions. As a holographic application, we derive the thermal superpotential in closed form and use it as a counterterm, explicitly demonstrating that no additional finite counterterms are required to regularize the Euclidean action and the quasi-local stress tensor. The dual stress tensor matches that of a thermal gas of massless particles and is consistent with mixed dilaton boundary conditions that preserve conformal symmetry. |
| title | Thermal superpotential and thermodynamics of neutral hairy black holes in extended SUGRA |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2511.04428 |