Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture

Benakli, Karim; Branchina, Carlo; Lafforgue-Marmet, Gaëtan

doi:10.1007/jhep11(2021)058

Cited by 9 publications

(3 citation statements)

References 50 publications

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“…The construction, or even existence, of black hole solutions within such a theory can be involved, see for instance [26]. In dS space the boundary of the diagram of black hole solutions in dS space consists of (AdS 2 , Mink 2 , dS 2 )×S 2 solutions with the Minkowski solution forming the crossover from AdS 2 to dS 2 .…”

Section: Fl Bound For Runaway Potentialsmentioning

confidence: 99%

The FL bound and its phenomenological implications

Montero,

Vafa,

Van Riet

et al. 2021

Preprint

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Demanding that charged Nariai black holes in (quasi-)de Sitter space decay without becoming super-extremal implies a lower bound on the masses of charged particles, known as the Festina Lente (FL) bound. In this paper we fix the O(1) constant in the bound and elucidate various aspects of it, as well as extensions to d > 4 and to situations with scalar potentials and dilatonic couplings. We also discuss phenomenological implications of FL including an explanation of why the Higgs potential cannot have a local minimum at the origin, thus explaining why the weak force must be broken. For constructions of meta-stable dS involving anti-brane uplift scenarios, even though the throat region is consistent with FL, the bound implies that we cannot have any light charged matter fields coming from any far away region in the compactified geometry, contrary to the fact that they are typically expected to arise in these scenarios. This strongly suggests that introduction of warped anti-branes in the throat cannot be decoupled from the bulk dynamics as is commonly assumed. Finally, we provide some evidence that in certain situations the FL bound can have implications even with gravity decoupled and illustrate this in the context of non-compact throats.

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Section: Fl Bound For Runaway Potentialsmentioning

confidence: 99%

The FL bound and its phenomenological implications

Montero,

Vafa,

Van Riet

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…where one could associate the first, second and third terms to D-brane fluxes, one-loop effect and tree-level cosmological constant contributions, respectively. Further dicussion of this potential can be found in [1] .…”

Section: Introductionmentioning

confidence: 99%

“…The Λ = 0 corresponds to the asymptotically flat black hole solution [2,3], upper sign to an asymptotically dS, lower sign to AdS space-time. These solutions have only two independent parameters r + , r − (with an appropriate choice of signs [1])…”

Section: Introductionmentioning

confidence: 99%

Dilatonic (Anti-)de Sitter Black Holes and Weak Gravity Conjecture

Benakli

Branchina

Lafforgue-Marmet

2022

Proceedings of Corfu Summer Institute 2021 "School and Workshops on Elementary Particle Physics and Gravity" — PoS(CORFU2021)

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We summarize our results on the presence and location of horizons in charged black hole solutions of Einstein-Maxwell-dilaton theory with non-trivial dilaton potentials, asymptotically flat or (Anti-)de Sitter, as function of the black hole parameters mass, charge and dilaton coupling strength. We observe that there is a value of latter which separates two regions, one where the black hole is Reissner-Nordström-like from a region where it is Schwarzschild-like. We find that for de Sitter and small non-vanishing of the dilaton coupling parameter, the extremal case is not reached by the solution. We also discuss the attractive or repulsive nature of the leading long distance interaction between two such black holes, or a test particle and one black hole, from a world-line effective field theory point of view.

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Black hole extremality in nonlinear electrodynamics: a lesson for weak gravity and Festina Lente bounds

Abe,

Noumi,

Yoshimura

2023

J. High Energ. Phys.

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We study black hole extremality in nonlinear electrodynamics motivated by the Weak Gravity Conjecture (WGC) and the Festina Lente (FL) bound. For illustration, we consider the Euler-Heisenberg model and the Dirac-Born-Infeld model in asymptotically flat spacetime, de Sitter spacetime, and anti-de Sitter spacetime. We find that in all cases the extremal condition enjoys a certain monotonicity expected by the WGC. This provides evidence for the conjecture beyond the leading order corrections to the Einstein-Maxwell theory. We also study how light charged particles modify the mass-charge relation of Nariai black holes in de Sitter spacetime and discuss possible implications for the FL bound. Besides, we point out an interesting similarity between our black hole analysis and gravitational positivity bounds on scattering amplitudes.

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Dilatonic (Anti-)de Sitter black holes and Weak Gravity Conjecture

Cited by 9 publications

References 50 publications

The FL bound and its phenomenological implications

The FL bound and its phenomenological implications

Dilatonic (Anti-)de Sitter Black Holes and Weak Gravity Conjecture

Black hole extremality in nonlinear electrodynamics: a lesson for weak gravity and Festina Lente bounds

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