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
Dark energy, H0 and weak gravity conjecture
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Modern Physics D"
DOI: 10.1142/s0218271819440176
Abstract: 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… read more here.
Keywords: weak gravity; physics; dark energy; formula see ... See more keywords