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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

We point out that the physics at the extreme IR---cosmology---might provide tests of the physics of the extreme UV---the Weak Gravity Conjecture. The current discrepancies in the determination of $H_0$ may hint at a modification of…

High Energy Physics - Theory · Physics 2019-11-11 Nemanja Kaloper

The authors of arXiv:1610.01533 have recently proposed a stronger version of the weak gravity conjecture (WGC), based on which they concluded that all those non-supersymmetric AdS vacua that can be embedded within a constistent theory of…

High Energy Physics - Theory · Physics 2017-08-02 Ulf Danielsson , Giuseppe Dibitetto

We propose a generalized formulation of the Scalar Weak Gravity Conjecture (SWGC) based on the analogy with the derivation of the Gauge Weak Gravity Conjecture (GWGC). We discuss some phenomenological implications of this Generalized SWGC,…

High Energy Physics - Phenomenology · Physics 2024-06-14 Fayez Abu-Ajamieh , Nobuchika Okada , Sudhir K. Vempati

The Weak Gravity Conjecture (WGC) was proposed to constrain Effective Field Theories (EFTs) with Abelian gauge symmetry coupled to gravity. In this article, I study the WGC from low energy observers' perspective, and revisit the issue of to…

High Energy Physics - Theory · Physics 2018-10-09 Kazuyuki Furuuchi

We demonstrate that the Weak Gravity Conjecture (WGC) and the Festina-Lente Conjecture (FLC) yield novel bounds on fifth force searches and milli-Charged Particles (mCPs), as well as on the scale of inflation and on the effective Higgs…

High Energy Physics - Phenomenology · Physics 2026-03-18 Fayez Abu-Ajamieh , Pratik Chattopadhyay , Nobuchika Okada , Roman Pasechnik , Zhi-Wei Wang

Common features of known quantum gravity theories may hint at the general nature of quantum gravity. The absence of continuous global symmetries is one such feature. This inspired the Weak Gravity Conjecture, which bounds masses of charged…

High Energy Physics - Theory · Physics 2016-11-15 Ben Heidenreich , Matthew Reece , Tom Rudelius

The Axion Weak Gravity Conjecture provides one of the most effective quantum gravity tools for constraining particle physics and cosmology, but it has long been thought of as a slightly fuzzy statement: given an axion with decay constant…

High Energy Physics - Theory · Physics 2026-05-25 Muldrow Etheredge , Matthew Reece , Tom Rudelius , Christopher Tudball

The Weak Gravity Conjecture postulates the existence of superextremal charged particles, i.e. those with mass smaller than or equal to their charge in Planck units. We present further evidence for our recent observation that in known…

High Energy Physics - Theory · Physics 2017-09-13 Ben Heidenreich , Matthew Reece , Tom Rudelius

We consider the gravitational correction to the running of gauge coupling. Weak gravity conjecture implies that the gauge theories break down when the gravitational correction becomes greater than the contribution from gauge theories. This…

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

We show that the Weak Gravity Conjecture (WGC) implies a nontrivial upper bound on the volumes of the minimal-volume cycles in certain homology classes that admit no calibrated representatives. In compactification of type IIB string theory…

High Energy Physics - Theory · Physics 2020-04-22 Mehmet Demirtas , Cody Long , Liam McAllister , Mike Stillman

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

The Weak Gravity Conjecture holds that gravity must be the weakest force. This is true of the familiar forces in our own universe -- electromagnetism, for instance, is many orders of magnitude stronger than gravity. But the bold claim of…

High Energy Physics - Theory · Physics 2024-09-05 Tom Rudelius

The Weak Gravity Conjecture (WGC) posits that gravity must be the weakest force in any consistent theory of quantum gravity. Originally formulated to constrain the landscape of effective field theories arising from string theory, the WGC…

High Energy Physics - Phenomenology · Physics 2025-04-30 Gayatri Ghosh

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

The axionic weak gravity conjecture predicts the existence of instantons whose actions are less than their charges in appropriate units. We show that the conjecture is satisfied for the axion-dilaton-gravity system if we assume duality…

High Energy Physics - Theory · Physics 2020-08-20 Stefano Andriolo , Tzu-Chen Huang , Toshifumi Noumi , Hirosi Ooguri , Gary Shiu

The neutrino pulse from SN1987A provides one of the most rigourous constraints on models of extra dimensions. Previously, calculations have been done to bound the size of these extra dimensions in the case when the metric was factorizable.…

High Energy Physics - Phenomenology · Physics 2010-02-03 Patrick J. Fox

Motivated by the desire to improve our understanding of the Weak Gravity Conjecture, we compute the one-loop correction of charged particles to the geometry and entropy of extremal black holes in 4d. We find that fermion loops provide…

High Energy Physics - Theory · Physics 2017-06-30 William Cottrell , Gary Shiu , Pablo Soler

We investigate the constraints imposed by the Weak Gravity Conjecture (WGC) on gravitational lensing in gravity's rainbow, focusing in particular on scenarios beyond extremality and on the interplay between the WGC and the Weak Cosmic…

General Relativity and Quantum Cosmology · Physics 2025-12-10 Saeed Noori Gashti , Behnam Pourhassan , Izzet Sakallı

In the presence of large extra dimensions, the fundamental Planck scale can be much lower than the apparent four-dimensional Planck scale. In this setup, the weak gravity conjecture implies a much more stringent constraint on the UV cutoff…

High Energy Physics - Theory · Physics 2008-11-26 Qing-Guo Huang