Super-Planckian spatial field variations and quantum gravity
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Publication:1678889
DOI10.1007/JHEP01(2017)088zbMATH Open1373.83044arXiv1610.00010OpenAlexW3100085696MaRDI QIDQ1678889
Author name not available (Why is that?)
Publication date: 7 November 2017
Published in: (Search for Journal in Brave)
Abstract: We study scenarios where a scalar field has a spatially varying vacuum expectation value such that the total field variation is super-Planckian. We focus on the case where the scalar field controls the coupling of a U(1) gauge field, which allows us to apply the Weak Gravity Conjecture to such configurations. We show that this leads to evidence for a conjectured property of quantum gravity that as a scalar field variation in field space asymptotes to infinity there must exist an infinite tower of states whose mass decreases as an exponential function of the scalar field variation. We determine the rate at which the mass of the states reaches this exponential behaviour showing that it occurs quickly after the field variation passes the Planck scale.
Full work available at URL: https://arxiv.org/abs/1610.00010
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