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Title: The Weak Gravity Conjecture and emergence from an ultraviolet cutoff

Journal Article · · European Physical Journal. C, Particles and Fields
 [1];  [2]; ORCiD logo [3]
  1. Perimeter Inst. for Theoretical Physics, Waterloo, (Canada)
  2. Harvard Univ., Cambridge, MA (United States)
  3. Inst. for Advanced Study, Princeton, NJ (United States)

We study ultraviolet cutoffs associated with the Weak Gravity Conjecture (WGC) and Sublattice Weak Gravity Conjecture (sLWGC). There is a magnetic WGC cutoff at the energy scale eG$$ \mathbb -1/2\atop{N} $$ with an associated sLWGC tower of charged particles. A more fundamental cutoff is the scale at which gravity becomes strong and field theory breaks down entirely. By clarifying the nature of the sLWGC for non-abelian gauge groups we derive a parametric upper bound on this strong gravity scale for arbitrary gauge theories. Intriguingly, we show that in theories approximately saturating the sLWGC, the scales at which loop corrections from the tower of charged particles to the gauge boson and graviton propagators become important are parametrically identical. This suggests a picture in which gauge fields emerge from the quantum gravity scale by integrating out a tower of charged matter fields. We derive a converse statement: if a gauge theory becomes strongly coupled at or below the quantum gravity scale, the WGC follows. We sketch some phenomenological consequences of the UV cutoffs we derive.

Research Organization:
Harvard Univ., Cambridge, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0013607
OSTI ID:
1510007
Journal Information:
European Physical Journal. C, Particles and Fields, Vol. 78, Issue 4; ISSN 1434-6044
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 77 works
Citation information provided by
Web of Science

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Cited By (26)

A Spin-2 Conjecture on the Swampland journal December 2018
The Swampland: Introduction and Review journal April 2019
Pole N-flation journal February 2019
Quantum log-corrections to swampland conjectures journal February 2020
Gravitational instabilities and censorship of large scalar field excursions journal May 2019
Photon masses in the landscape and the swampland journal July 2019
Infinite distances in field space and massless towers of states journal August 2018
The Swampland Distance Conjecture and towers of tensionless branes journal August 2019
The Swampland Distance Conjecture for Kähler moduli journal August 2019
Instantons and infinite distances journal August 2019
Modular fluxes, elliptic genera, and weak gravity conjectures in four dimensions journal August 2019
Racing through the swampland: de Sitter uplift vs. weak gravity journal September 2018
Universal bound on the strong coupling scale of a gravitationally coupled massive spin-2 particle journal October 2018
Dark photon dark matter from a network of cosmic strings journal March 2019
Emergence of Weak Coupling at Large Distance in Quantum Gravity journal August 2018
Pole N-flation text January 2019
Racing through the swampland: de Sitter uplift vs weak gravity text January 2018
Racing through the swampland: de Sitter uplift vs. weak gravity text January 2018
Infinite Distances in Field Space and Massless Towers of States text January 2018
Pole N-flation text January 2018
A Universal Bound on the Strong Coupling Scale of a Gravitationally Coupled Massive Spin-2 Particle text January 2018
Photon Masses in the Landscape and the Swampland text January 2018
A Spin-2 Conjecture on the Swampland text January 2018
Modular Fluxes, Elliptic Genera, and Weak Gravity Conjectures in Four Dimensions text January 2019
The Swampland: Introduction and Review text January 2019
Quantum Log-Corrections to Swampland Conjectures text January 2019

Figures / Tables (5)


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