The Weak Gravity Conjecture and the axionic black hole paradox
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2017)036
Abstract: A bstractIn theories with a perturbatively massless 2-form (dual to an axion), a paradox may arise in the process of black hole evaporation. Schwarzschild black holes can support a non-trivial Wilson-line-type field, the integral of… read more here.
Keywords: black hole; hole; weak gravity; axionic black ... See more keywords
Racing through the swampland: de Sitter uplift vs. weak gravity
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2018)099
Abstract: A bstractWe observe that racetrack models for moduli stabilization are in tension with strong forms of the Weak Gravity Conjecture (WGC). Moreover, recently, it was noted that controlled KKLT-type de Sitter vacua seem to require… read more here.
Keywords: racing swampland; sitter; sitter uplift; weak gravity ... See more keywords
The weak scale from weak gravity
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2019)081
Abstract: Abstract We explore the prospects for bounding the weak scale using the weak gravity conjecture (WGC), addressing the hierarchy problem by violating the expectations of effective field theory. Building on earlier work by Cheung and… read more here.
Keywords: weak gravity; scale weak; physics; weak scale ... See more keywords
A species or weak-gravity bound for large N gauge theories coupled to gravity
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2019)142
Abstract: Abstract Causality constrains the gravitational interactions of massive higher spin particles in both AdS and flat spacetime. We explore the extent to which these constraints apply to composite particles, explaining why they do not rule… read more here.
Keywords: weak gravity; gauge theories; large gauge; gravity ... See more keywords
The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2021)110
Abstract: Abstract We discover a weak-gravity bound in scalar-gravity systems in the asymptotic-safety paradigm. The weak-gravity bound arises in these systems under the approximations we make, when gravitational fluctuations exceed a critical strength. Beyond this critical… read more here.
Keywords: weak gravity; critical strength; gravity bound; matter gravity ... See more keywords
A stringy test of the Scalar Weak Gravity Conjecture
Sign Up to like & getrecommendations! Published in 2019 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2018.11.001
Abstract: Abstract 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… read more here.
Keywords: weak gravity; gravity conjecture; stringy test; conjecture ... See more keywords
Spin-2 fields and the weak gravity conjecture
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.104033
Abstract: Recently, it has been argued that application of the Weak Gravity Conjecture (WGC) to spin-2 fields implies a universal upper bound on the cutoff of the effective theory for a single spin-2 field. We point… read more here.
Keywords: spin fields; weak gravity; spin; gravity conjecture ... See more keywords
Probing the weak gravity conjecture in the cosmic microwave background
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.101.083525
Abstract: The weak gravity conjecture imposes severe constraints on natural inflation. A trans-Planckian axion decay constant can be realized only if the potential exhibits an additional (subdominant) modulation with sub-Planckian periodicity. The resulting wiggles in the… read more here.
Keywords: weak gravity; cosmic microwave; modulation; gravity ... See more keywords
Weak gravity conjecture and effective field theory
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.025013
Abstract: The weak gravity conjecture (WGC) is a proposed constraint on theories with gauge fields and gravity, requiring the existence of light charged particles and/or imposing an upper bound on the field theory cutoff $\mathrm{\ensuremath{\Lambda}}$. If… read more here.
Keywords: gravity conjecture; field; weak gravity; field theory ... See more keywords
Testing the Weak Gravity - Cosmic Censorship Connection
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.066005
Abstract: 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 Einstein-Maxwell-$\Lambda$ theory would be… read more here.
Keywords: gravity conjecture; censorship; connection; weak gravity ... See more keywords
Positivity of Amplitudes, Weak Gravity Conjecture, and Modified Gravity.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.123.251103
Abstract: We derive new positivity bounds for scattering amplitudes in theories with a massless graviton in the spectrum in four spacetime dimensions, of relevance for the weak gravity conjecture and modified gravity theories. The bounds imply… read more here.
Keywords: weak gravity; modified gravity; gravity; gravity conjecture ... See more keywords