Love numbers of black p-branes: fine tuning, Love symmetries, and their geometrization
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866915138293989376 |
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| author | Charalambous, Panagiotis Dubovsky, Sergei Ivanov, Mikhail M. |
| author_facet | Charalambous, Panagiotis Dubovsky, Sergei Ivanov, Mikhail M. |
| contents | We compute scalar static response coefficients (Love numbers) of non-dilatonic black $p$-brane solutions in higher dimensional supergravity. This calculation revels a fine-tuning behavior similar to that of higher dimensional black holes, which we explain by ``hidden'' near-zone Love symmetries. In general, these symmetries act on equations for perturbations but they are not background isometries. The Love symmetry of charged $p=0$ branes is described by the usual $SL(2,\mathbb{R})$ algebra. For $p=1$ the Love symmetry has an algebraic structure $SL(2,\mathbb{R})\times SL(2,\mathbb{R})$. The $p=0,1$ Love symmetries reduce to isometries of the near-horizon Schwarzschild-AdS$_{p+2}$ metric in the near-extremal finite temperature limit. They further reduce to the AdS$_{p+2}$ isometries in the extremal zero-temperature limit. We call this process geometrization. In contrast, for the $p>1$ cases, the Love symmetry is always an $SL(2,\mathbb{R})$, and there is no limit in which it becomes geometric. We interpret geometrization and its absence as a consequence of the local equivalence between the Schwarzschild-AdS$_{p+2}$ and pure AdS$_{p+2}$ spaces for $p=0,1$, which does not hold for $p>1$. We also show that the static Love numbers of extremal $p$-branes are always zero regardless of spacetime dimensionality, which contrasts starkly with the non-extremal case. Overall, our results suggest that the Love symmetry is hidden by nature, and it can acquire a geometric meaning only if the background has an AdS$_{2}$ or AdS$_{3}$ limit. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_02694 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Love numbers of black p-branes: fine tuning, Love symmetries, and their geometrization Charalambous, Panagiotis Dubovsky, Sergei Ivanov, Mikhail M. High Energy Physics - Theory General Relativity and Quantum Cosmology We compute scalar static response coefficients (Love numbers) of non-dilatonic black $p$-brane solutions in higher dimensional supergravity. This calculation revels a fine-tuning behavior similar to that of higher dimensional black holes, which we explain by ``hidden'' near-zone Love symmetries. In general, these symmetries act on equations for perturbations but they are not background isometries. The Love symmetry of charged $p=0$ branes is described by the usual $SL(2,\mathbb{R})$ algebra. For $p=1$ the Love symmetry has an algebraic structure $SL(2,\mathbb{R})\times SL(2,\mathbb{R})$. The $p=0,1$ Love symmetries reduce to isometries of the near-horizon Schwarzschild-AdS$_{p+2}$ metric in the near-extremal finite temperature limit. They further reduce to the AdS$_{p+2}$ isometries in the extremal zero-temperature limit. We call this process geometrization. In contrast, for the $p>1$ cases, the Love symmetry is always an $SL(2,\mathbb{R})$, and there is no limit in which it becomes geometric. We interpret geometrization and its absence as a consequence of the local equivalence between the Schwarzschild-AdS$_{p+2}$ and pure AdS$_{p+2}$ spaces for $p=0,1$, which does not hold for $p>1$. We also show that the static Love numbers of extremal $p$-branes are always zero regardless of spacetime dimensionality, which contrasts starkly with the non-extremal case. Overall, our results suggest that the Love symmetry is hidden by nature, and it can acquire a geometric meaning only if the background has an AdS$_{2}$ or AdS$_{3}$ limit. |
| title | Love numbers of black p-branes: fine tuning, Love symmetries, and their geometrization |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2502.02694 |