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Extremal stringy black holes in equilibrium at first order in α'
by Tomás Ortín, Alejandro Ruipérez, Matteo Zatti
This Submission thread is now published as
Submission summary
Authors (as registered SciPost users): | Tomás Ortín |
Submission information | |
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Preprint Link: | https://arxiv.org/abs/2112.12764v2 (pdf) |
Date accepted: | 2023-10-11 |
Date submitted: | 2023-10-04 10:51 |
Submitted by: | Ortín, Tomás |
Submitted to: | SciPost Physics Core |
Ontological classification | |
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Academic field: | Physics |
Specialties: |
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Approach: | Theoretical |
Abstract
We compute the first-order \alpha' corrections to well-known families of heterotic multi-center black-hole solutions in five and four dimensions. The solutions can be either supersymmetric or non-supersymmetric, depending on the relative sign between two of the black-hole charges. For both cases, we find that the equilibrium of forces persists after including the \alpha' corrections, as the existence of multi-center solutions free of unphysical singularities shows. We analyze the possibility of black-hole fragmentation.
Author comments upon resubmission
List of changes
- We have added a sentence in the paragraph above Eq.~(D.4) explaining how
the vanishing of T^{(2)}{}_{++} is related to that of \mathcal{Z}_{+} in
the non-supersymmetric case.
- We have added the word extremal'' to the next to last paragraph in
page 4 and we have rewritten the first sentence of the last paragraph so
make its meaning more clear.
- Furthermore, we have replaced Ref.~[16] by a reference to a more recent
paper by one of us in which the corrections to the 4-charge solutions have
been computed but only in the particular case in which two of them are
equal. The case in which the 4 charges are independent still seems out of
our reach. We have added an explanation of this facts.
- At the beginning of page 7 (end of page 6 in the previous version) we
have replaced we'' by two of us''.
- We have added the references on multicenter black-hole solutions in
String Theory which we think are most relevant in this case in a long
footnote at the beginning of Section~2.
- We have modified the paragraph above Eq.~(4.5) to refer to the
definition of the curvature of the torsionful spin connection.
A detailed explanation of the changes is included in the answer to the referee's report.
Published as SciPost Phys. Core 6, 072 (2023)