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The Weak Gravity Conjecture (WGC) demands the existence of superextremal particles in any consistent quantum theory of gravity. The standard lore is that these particles are introduced to ensure that extremal black holes are either unstable…

High Energy Physics - Theory · Physics 2019-04-09 Miguel Montero

The weak gravity conjecture states that quantum gravity theories have to contain a charged state with a charge-to-mass ratio bigger than unity. By studying unitarity and causality constraints on higher derivative corrections to the…

High Energy Physics - Theory · Physics 2019-08-07 Yuta Hamada , Toshifumi Noumi , Gary Shiu

We study weakly coupled $U(1)$ theories in $AdS_3$, their associated charged BTZ solutions, and their charged spectra. We find that modular invariance of the holographic dual two-dimensional CFT and compactness of the gauge group together…

High Energy Physics - Theory · Physics 2016-11-23 Miguel Montero , Gary Shiu , Pablo Soler

The Weak Gravity Conjecture holds that in a theory of quantum gravity, any gauge force must mediate interactions stronger than gravity for some particles. This statement has surprisingly deep and extensive connections to many different…

High Energy Physics - Theory · Physics 2023-09-14 Daniel Harlow , Ben Heidenreich , Matthew Reece , Tom Rudelius

In this study, we investigate the Weak Gravity Conjecture (WGC) in the context of quantum-corrected AdS-Reissner-Nordstrom (AdS-RN) black holes within Kiselev spacetime. Our focus is on photon spheres, which serve as markers for stable and…

General Relativity and Quantum Cosmology · Physics 2025-12-25 Mohammad Reza Alipour , Mohammad Ali S. Afshar , Saeed Noori Gashti , Jafar Sadeghi

In recent literature, it has been argued that a mild form of the Weak Gravity Conjecture (WGC) is satisfied by wide classes of effective field theories in which higher-derivative corrections can be shown to shift the charge-to-mass ratios…

High Energy Physics - Theory · Physics 2019-09-06 Lars Aalsma , Alex Cole , Gary Shiu

We consider the gravitational correction to the coupling of the scalar fields. Weak gravity conjecture says that the gravitational correction to the running of scalar coupling should be less than the contribution from scalar fields. For…

High Energy Physics - Theory · Physics 2010-10-27 Qing-Guo Huang

It has recently been suggested that "gravity is the weakest force" in any theory with a suitable UV completion within quantum gravity. One formulation of this statement is the scalar weak gravity conjecture, which states that gravity is…

High Energy Physics - Theory · Physics 2019-04-26 Satoshi Shirai , Masahito Yamazaki

We prove a version of the Weak Gravity Conjecture for 6d F-theory or heterotic string compactifications with 8 supercharges. This sharpens our previous analysis by including massless scalar fields. The latter are known to modify the Weak…

High Energy Physics - Theory · Physics 2018-12-26 Seung-Joo Lee , Wolfgang Lerche , Timo Weigand

We examine the minimal constraints imposed by the Weak Gravity Conjecture (WGC) on the particle spectrum of a quantum gravity theory. Towers of super-extremal states have previously been argued to be required for consistency of the WGC…

High Energy Physics - Theory · Physics 2024-05-20 Cesar Fierro Cota , Alessandro Mininno , Timo Weigand , Max Wiesner

In this work, we investigate the extension of our recent proposal for the Weak Gravity Conjecture (WGC) in AdS space to more general effective field theories. We first extend the conjecture to set-ups where moduli are present and we demand…

High Energy Physics - Theory · Physics 2025-12-01 Puxin Lin , Alessandro Mininno , Gary Shiu

In this paper, we investigate the strong cosmic censorship conjecture (SCC) for charged black holes in the de Sitter space by considering the weak gravity conjecture (WGC). Using analytical methods, we find that the SCC is preserved for…

High Energy Physics - Theory · Physics 2023-02-28 Jafar Sadeghi , Mohammad Reza Alipour , Saeed Noori Gashti

We conjecture a general upper bound on the strength of gravity relative to gauge forces in quantum gravity. This implies, in particular, that in a four-dimensional theory with gravity and a U(1) gauge field with gauge coupling g, there is a…

High Energy Physics - Theory · Physics 2010-04-06 Nima Arkani-Hamed , Lubos Motl , Alberto Nicolis , Cumrun Vafa

We analyze the constraints on four-derivative corrections to 5d Einstein-Maxwell theory from the black hole Weak Gravity Conjecture (WGC). We calculate the leading corrections to the extremal mass of asymptotically flat 5d charged solutions…

High Energy Physics - Theory · Physics 2021-05-19 Sera Cremonini , Callum R. T. Jones , James T. Liu , Brian McPeak , Yuezhang Tang

A surprising connection between the weak gravity conjecture and cosmic censorship has recently been proposed. In particular, it was argued that a promising class of counterexamples to cosmic censorship in four-dimensional…

High Energy Physics - Theory · Physics 2019-07-17 Toby Crisford , Gary T. Horowitz , Jorge E. Santos

The weak gravity conjecture suggests that, in a self-consistent theory of quantum gravity, the strength of gravity is bounded from above by the strengths of the various gauge forces in the theory. In particular, this intriguing conjecture…

General Relativity and Quantum Cosmology · Physics 2017-11-22 Shahar Hod

We use the Weak Gravity Conjecture (WGC) to investigate the impact of charge dequantization arising from non-local QED on the scale of non-locality of neutrinos. We find this scale to be <= 87 TeV, which could be probed in future colliders.…

High Energy Physics - Phenomenology · Physics 2024-11-08 Fayez Abu-Ajamieh , Nobuchika Okada , Sudhir K. Vempati

We correlate the weak gravity conjecture (WGC), the KSS conjecture with chemical potential at extremality and the central charges by going through a particular example in five dimensional AdS spacetime with two unknown coefficients $c_1,…

High Energy Physics - Theory · Physics 2010-03-16 Shesansu Sekhar Pal

The mild form of the Weak Gravity Conjecture states that quantum or higher-derivative corrections should decrease the mass of large extremal charged black holes at fixed charge. This allows extremal black holes to decay, unless protected by…

High Energy Physics - Theory · Physics 2021-04-27 Lars Aalsma , Alex Cole , Gregory J. Loges , Gary Shiu

The Weak Gravity Conjecture arises from the requirement that it be possible for all (classically stable) extremal black holes to decay. The ``black hole version'' of the conjecture requires that it should be possible for this to occur…

General Relativity and Quantum Cosmology · Physics 2021-09-15 Brett McInnes