Neutrino masses, vacuum stability and quantum gravity prediction for the mass of the top quark
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep01(2021)180
Abstract: A general prediction from asymptotically safe quantum gravity is the approximate vanishing of all quartic scalar couplings at the UV fixed point beyond the Planck scale. A vanishing Higgs doublet quartic coupling near the Planck… read more here.
Keywords: top quark; mass; prediction; quantum gravity ... See more keywords
Quantum gravity on the black hole horizon
Sign Up to like & getrecommendations! Published in 2022 at "Journal of High Energy Physics"
DOI: 10.1007/jhep01(2022)023
Abstract: We study scattering on the black hole horizon in a partial wave basis, with an impact parameter of the order of the Schwarzschild radius or less. This resembles the strong gravity regime where quantum gravitational… read more here.
Keywords: hole horizon; horizon; black hole; quantum gravity ... See more keywords
Universal critical behavior in tensor models for four-dimensional quantum gravity
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DOI: 10.1007/jhep02(2020)110
Abstract: Four-dimensional random geometries can be generated by statistical models with rank-4 tensors as random variables. These are dual to discrete building blocks of random geometries. We discover a potential candidate for a continuum limit in… read more here.
Keywords: universal critical; behavior tensor; four dimensional; tensor models ... See more keywords
The ultraviolet behavior of quantum gravity
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2018)027
Abstract: A bstractA theory of quantum gravity has been recently proposed by means of a novel quantization prescription, which is able to turn the poles of the free propagators that are due to the higher derivatives… read more here.
Keywords: part; energy; quantum gravity; ultraviolet behavior ... See more keywords
Effective relational cosmological dynamics from quantum gravity
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DOI: 10.1007/jhep05(2021)025
Abstract: Abstract We discuss the relational strategy to solve the problem of time in quantum gravity and different ways in which it could be implemented, pointing out in particular the fundamentally new dimension that the problem… read more here.
Keywords: dynamics quantum; effective relational; gravity; quantum gravity ... See more keywords
Low-dimensional de Sitter quantum gravity
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DOI: 10.1007/jhep06(2020)048
Abstract: We study aspects of Jackiw-Teitelboim (JT) quantum gravity in two-dimensional nearly de Sitter (dS) spacetime, as well as pure de Sitter quantum gravity in three dimensions. These are each theories of boundary modes, which include… read more here.
Keywords: sitter quantum; genus expansion; sitter; gravity ... See more keywords
The continuum limit of quantum gravity at first order in perturbation theory
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2020)138
Abstract: The Wilsonian renormalization group (RG) properties of the conformal factor of the metric are profoundly altered by the fact that it has a wrong-sign kinetic term. The result is a novel perturbative continuum limit for… read more here.
Keywords: continuum limit; limit; first order; coefficient functions ... See more keywords
Quantum gravity states, entanglement graphs and second-quantized tensor networks
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2021)052
Abstract: Abstract In recent years, the import of quantum information techniques in quantum gravity opened new perspectives in the study of the microscopic structure of spacetime. We contribute to such a program by establishing a precise… read more here.
Keywords: gravity; tensor networks; second quantized; quantum gravity ... See more keywords
Quantum gravity effects on the thermodynamic stability of 4D Schwarzschild black hole
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DOI: 10.1007/jhep08(2017)068
Abstract: A bstractBased on the Euclidean approach, we consider the effects of quantum gravity and mass-less matter on the thermodynamic properties of Schwarzschild black hole. The techniques of effective field theory are utilized to analytically construct… read more here.
Keywords: black hole; hole; schwarzschild black; quantum gravity ... See more keywords
Defects in Jackiw-Teitelboim quantum gravity
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DOI: 10.1007/jhep08(2019)127
Abstract: Abstract We classify and study defects in 2d Jackiw-Teitelboim gravity. We show these are holographically described by a deformation of the Schwarzian theory where the reparametrization mode is integrated over different coadjoint orbits of the… read more here.
Keywords: defects jackiw; theory; teitelboim quantum; quantum gravity ... See more keywords
Subleading soft dressings of asymptotic states in QED and perturbative quantum gravity
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DOI: 10.1007/jhep09(2019)031
Abstract: Abstract We construct Faddeev-Kulish states in QED and perturbative quantum gravity to subleading order in the soft momentum expansion and to first order in the coupling constant, using the charge conservation formula of asymptotic symmetries… read more here.
Keywords: qed perturbative; states qed; quantum gravity; perturbative quantum ... See more keywords