Inflation in a Non‐Commutative Riemannian‐Foliated Quantum Gravity Domain
Sign Up to like & getrecommendations! Published in 2025 at "Astronomische Nachrichten"
DOI: 10.1002/asna.20240152
Abstract: We explore the implications of Branch‐Cut Quantum Gravity (BCQG), a novel framework leveraging non‐commutative geometry within a symplectic phase‐space, on the accelerated expansion of the universe. Non‐commutativity, introduced through a deformation of the Poisson algebra… read more here.
Keywords: riemannian foliated; non commutative; commutative riemannian; quantum gravity ... See more keywords
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
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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
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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
Soft gravitons in three dimensions
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DOI: 10.1007/jhep07(2025)002
Abstract: We consider quantum gravity with zero cosmological constant in three dimensions. First, we show that pure quantum gravity can be written as a magnetic Carrollian theory living on null infinity, described by Schwarzian-like degrees of… read more here.
Keywords: gravity; gravitons three; soft gravitons; three dimensions ... 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