A Tower Weak Gravity Conjecture from Infrared Consistency

Andriolo, Stefano; Junghans, Daniel; Noumi, Toshifumi; Shiu, Gary

doi:10.1002/prop.201800020

Cited by 150 publications

(179 citation statements)

References 69 publications

(160 reference statements)

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“…In [] another argument was presented for a necessary tower of particles satisfying the Weak Gravity Conjecture. The idea is to consider properties of higher derivative terms in the action, similar to the approach discussed in section 3.3.3.…”

Section: Charting the Swamplandmentioning

confidence: 99%

The Swampland: Introduction and Review

Palti

2019

Fortschritte der Physik

951

1,097

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The Swampland program aims to distinguish effective theories which can be completed into quantum gravity in the ultraviolet from those which cannot. This article forms an introduction to the field, assuming only a knowledge of quantum field theory and general relativity. It also forms a comprehensive review, covering the range of ideas that are part of the field, from the Weak Gravity Conjecture, through compactifications of String Theory, to the de Sitter conjecture.

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Section: Charting the Swamplandmentioning

confidence: 99%

The Swampland: Introduction and Review

Palti

2019

Fortschritte der Physik

951

1,097

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“…Such bounds on the mass of a state are familiar from statements such as the Weak Gravity Conjecture [14]. It has been proposed a number of times that in fact the WGC bounds should be satisfied by an infinite tower of states [15][16][17][18][19][20]. The ADC is then naturally a tower version of the (slightly adjusted) de Sitter conjecture applied to AdS space.…”

Section: Refined De Sitter Conjecturementioning

confidence: 99%

AdS and the Swampland

2019

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We study aspects of anti-de Sitter space in the context of the Swampland. In particular, we conjecture that the near-flat limit of pure AdS belongs to the Swampland, as it is necessarily accompanied by an infinite tower of light states. The mass of the tower is power-law in the cosmological constant, with a power of 1 2 for the supersymmetric case. We discuss relations between this behaviour and other Swampland conjectures such as the censorship of an unbounded number of massless fields, and the refined de Sitter conjecture. Moreover, we propose that changes to the AdS radius have an interpretation in terms of a generalised distance conjecture which associates a distance to variations of all fields. In this framework, we argue that the distance to the Λ → 0 limit of AdS is infinite, leading to the light tower of states. We also discuss implications of the conjecture for de Sitter space.

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“…In light of these examples, a more valid conjecture may be the less specific "Tower WGC" stated in Ref. [20], which simply suggests that there must exist a sequence or "tower" of charged particles (not necessarily occupying a sublattice) satisfying some bounds on their charge-to-mass ratios. This would suggest that the presence of particles of various charges satisfying the extremality bound Eq.…”

Section: Review Of Wgcsmentioning

confidence: 99%

Approximate symmetries and gravity

Fichet

Saraswat

2020

J. High Energ. Phys.

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There are strong reasons to believe that global symmetries of quantum theories cannot be exact in the presence of gravity. While this has been argued at the qualitative level, establishing a quantitative statement is more challenging. In this work we take new steps towards quantifying symmetry violation in EFTs with gravity. First, we evaluate global charge violation by microscopic black holes present in a thermal system, which represents an irreducible, universal effect at finite temperature. Second, based on general QFT considerations, we propose that local symmetry-violating processes should be faster than black hole-induced processes at any sub-Planckian temperature.Such a proposal can be seen as part of the "swampland" program to constrain EFTs emerging from quantum gravity. Considering an EFT perspective, we formulate a conjecture which requires the existence of operators violating global symmetry and places quantitative bounds on them. We study the interplay of our conjecture with emergent symmetries in QFT. In models where gauged U (1)'s enforce accidental symmetries, we find that constraints from the Weak Gravity Conjecture can ensure that our conjecture is satisfied. We also study the consistency of the conjecture with QFT models of emergent symmetries such as extradimensional localization, the Froggatt-Nielsen mechanism, and the clockwork mechanism.

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A Tower Weak Gravity Conjecture from Infrared Consistency

Cited by 150 publications

References 69 publications

The Swampland: Introduction and Review

The Swampland: Introduction and Review

AdS and the Swampland

Approximate symmetries and gravity

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