Abstract
We analyze finite size solutions for a generalized D-dimensional Dudas-Mourad (DM) model featuring dynamical cobordism with neutral and charged end-of-the-world (ETW) defect branes. Confirming a dynamical version of the Cobordism Conjecture, we explicitly construct non-isotropic solutions for the latter codimension one branes and show the appearance of a lower bound \( \delta \ge 2\sqrt{\left(D-1\right)/\left(D-2\right)} \) for the critical exponent in the scaling behavior of the distance and the curvature close to the wall. This allows us to make a connection to the (sharpened) Swampland Distance Conjecture and the (Anti-) de Sitter Distance Conjecture. Moreover, BPS orientifold planes appear as special cases in our analysis and the whole picture is consistent with dimensional reduction from ten to D dimensions. An analogous analysis is performed for a generalized Blumenhagen-Font (BF) model featuring neutral codimension two ETW-branes where the same lower bound for the scaling parameter δ arises.
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We would like to thank Ivano Basile, Niccolo Cribiori and Andriana Makridou for useful discussions.
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Blumenhagen, R., Kneißl, C. & Wang, C. Dynamical Cobordism Conjecture: solutions for end-of-the-world branes. J. High Energ. Phys. 2023, 123 (2023). https://doi.org/10.1007/JHEP05(2023)123
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DOI: https://doi.org/10.1007/JHEP05(2023)123