String stars in $d\geq 7$
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866915408710205440 |
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| author | Bedroya, Alek Wu, David |
| author_facet | Bedroya, Alek Wu, David |
| contents | We raise a thermodynamic puzzle for Horowitz--Polchinski (HP) solutions in the presence of extra compact dimensions and show that it can be resolved by the existence of higher-dimensional string stars. We provide non-trivial evidence for the existence of such string stars in spacetime dimensions $d\geq 7$ as higher-dimensional counterparts of HP solutions. In particular, we explicitly construct string star solutions in $d=7$ that are under perturbative control. In $d>7$, at the Hagedorn temperature, we identify these string stars as a specific normalizable representative of a new one-parameter bounded family of Euclidean solutions which can be under perturbative control. The higher-order $α'$ corrections play a crucial role in our arguments and, as pointed by other works, nullify the previous arguments against the existence of string stars in $d\geq 7$. The higher-dimensional string stars have non-zero free energy at Hagedorn temperature and their mass and free energy are of the same order as those of a string-sized black hole. In $d>7$, these solutions are string sized, but in $d=7$, the size of these solutions diverges as $\sim (T_{\rm H}-T)^{-1/4}$ near the Hagedorn temperature. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_19888 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | String stars in $d\geq 7$ Bedroya, Alek Wu, David High Energy Physics - Theory We raise a thermodynamic puzzle for Horowitz--Polchinski (HP) solutions in the presence of extra compact dimensions and show that it can be resolved by the existence of higher-dimensional string stars. We provide non-trivial evidence for the existence of such string stars in spacetime dimensions $d\geq 7$ as higher-dimensional counterparts of HP solutions. In particular, we explicitly construct string star solutions in $d=7$ that are under perturbative control. In $d>7$, at the Hagedorn temperature, we identify these string stars as a specific normalizable representative of a new one-parameter bounded family of Euclidean solutions which can be under perturbative control. The higher-order $α'$ corrections play a crucial role in our arguments and, as pointed by other works, nullify the previous arguments against the existence of string stars in $d\geq 7$. The higher-dimensional string stars have non-zero free energy at Hagedorn temperature and their mass and free energy are of the same order as those of a string-sized black hole. In $d>7$, these solutions are string sized, but in $d=7$, the size of these solutions diverges as $\sim (T_{\rm H}-T)^{-1/4}$ near the Hagedorn temperature. |
| title | String stars in $d\geq 7$ |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2412.19888 |