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String Stars in Anti de Sitter Space
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We study the `string star' saddle, also known as the Horowitz-Polchinski solution, in the middle of d+1 dimensional thermal AdS space. We show that there's a regime of temperatures in which the saddle is very similar to the flat space solution found by Horowitz and Polchinski. This saddle is hypothetically connected at lower temperatures to the small AdS black hole saddle. We also study, numerically and analytically, how the solutions are changed due to the AdS geometry for higher temperatures. Specifically, we describe how the solution joins with the thermal gas phase, and find the leading correction to the Hagedorn temperature due to the AdS curvature. Finally, we study the thermodynamic instabilities of the solution and argue for a Gregory-Laflamme-like instability whenever extra dimensions are present at the AdS curvature scale.
Forward citations
Cited by 4 Pith papers
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String stars in $d\geq 7$
String stars in d≥7 exist as higher-dimensional counterparts of Horowitz-Polchinski solutions, with perturbative d=7 solutions and normalizable candidates in d>7.
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Vacuum configuration of winding superstrings from non-standard semiclassical quantization
A non-standard off-shell quantization of the worldsheet metric yields a self-consistent vacuum configuration and Hagedorn temperatures for confining holographic theories, reproducing known next-to-leading order and pr...
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Phases of String Stars in the Presence of a Spatial Circle
String star phase diagrams on a spatial circle are computed: new d=2 solutions, a quartic-induced d=5 swallowtail, and an anomalous d=6 stability pattern.
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