Emergence of species scale black hole horizons

Author:

Calderón-Infante José,Delgado MatildaORCID,Uranga Angel M.

Abstract

Abstract The scale at which quantum gravity becomes manifest, the species scale Λs, has recently been argued to take values parametrically lower than the Planck scale. We use black holes of vanishing horizon area (small black holes) in effective field theories coupled to quantum gravity to shed light on how the three different physical manifestations of the species scale Λs relate to each other. (i) Near the small black hole core, a scalar field runs to infinite distance in moduli space, a regime in which the Swampland Distance Conjecture predicts a tower of exponentially light states, which lower Λs. (ii) We integrate out modes in the tower and generate via Emergence a set of higher derivative corrections, showing that Λs is the scale at which such terms become relevant. (iii) Finally, higher derivative terms modify the black hole solution and grant it a non-zero, species scale sized stretched horizon of radius $$ {\Lambda}_s^{-1} $$ Λ s 1 , showcasing the species scale as the size of the smallest possible black hole describable in the effective theory.We present explicit 4d examples of small black holes in 4d $$ \mathcal{N} $$ N = 2 supergravity, and the 10d example of type IIA D0-branes. The emergence of the species scale horizon for D0-branes requires a non-trivial interplay of different 8-derivative terms in type IIA and M-theory, providing a highly non-trivial check of our unified description of the different phenomena associated to the species scale.

Publisher

Springer Science and Business Media LLC

Subject

Nuclear and High Energy Physics

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Entropy bounds and the species scale distance conjecture;Journal of High Energy Physics;2024-01-09

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