Universal flow equations and chaos bound saturation in 2d dilaton gravity
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep01(2021)112
Abstract: We show that several features of the Jackiw-Teitelboim model are in fact universal properties of two-dimensional Maxwell-dilaton gravity theories with a broad class of asymptotics. These theories satisfy a flow equation with the structure of… read more here.
Keywords: flow equations; equations chaos; dilaton gravity; dilaton ... See more keywords
Dynamical black holes in low-energy string theory
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2017)035
Abstract: A bstractWe investigate time-dependent spherically symmetric solutions of the four-dimensional Einstein-Maxwell-axion-dilaton system, with the dilaton coupling that occurs in low-energy effective heterotic string theory. A class of dilaton-electrovacuum radiating solutions with a trivial axion, previously… read more here.
Keywords: energy string; black holes; energy; dilaton ... See more keywords
Cosmological singularities and 2-dimensional dilaton gravity
Sign Up to like & getrecommendations! Published in 2020 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2020)062
Abstract: We study Big-Bang or -Crunch cosmological singularities in 2-dimensional dilaton-gravity-scalar theories, in general obtained by dimensional reduction of higher dimensional theories. The dilaton potential encodes information about the asymptotic data defining the theories, and encompasses… read more here.
Keywords: cosmological singularities; dilaton gravity; dilaton; singularities dimensional ... See more keywords
Aspects of compactification on a linear dilaton background
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2021)137
Abstract: Abstract We consider the most general Kaluza-Klein (KK) compactification on S1/ℤ2 of a five dimensional (5D) graviton-dilaton system, with a non-vanishing dilaton background varying linearly along the fifth dimension. We show that this background produces… read more here.
Keywords: aspects compactification; dilaton background; dilaton; linear dilaton ... See more keywords
Phantom wormholes in Einstein-Maxwell-dilaton theory
Sign Up to like & getrecommendations! Published in 2017 at "Classical and Quantum Gravity"
DOI: 10.1088/1361-6382/aa9dfc
Abstract: In this paper we give an electrically charged traversable wormhole solution for the Einstein–Maxwell-dilaton theory when the dilaton is a phantom field, i.e. it has flipped sign kinetic term appearing in the action. In the… read more here.
Keywords: maxwell dilaton; einstein maxwell; theory; dilaton ... See more keywords
Effect of the hair on deflection angle by asymptotically flat black holes in Einstein-Maxwell-dilaton theory
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.044052
Abstract: In this paper, we are interested in a model of exact asymptotically flat charged hairy black holes in the background of a dilaton potential. We study the weak gravitational lensing in the spacetime of a… read more here.
Keywords: deflection angle; hairy black; black holes; dilaton ... See more keywords
Black holes that repel
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.99.101502
Abstract: The recent observation that black holes in certain Einstein-Maxwell-dilaton (EMD) theories can violate the entropy super-additivity led to the suggestion that these black holes might repel each other. In this paper, we consider EMD theories… read more here.
Keywords: dilaton; black holes; holes repel; black hole ... See more keywords
The Linear Dilaton: from the Clockwork Mechanism to Its Supergravity Embedding
Sign Up to like & getrecommendations! Published in 2020 at "Physics of Particles and Nuclei Letters"
DOI: 10.1134/s1547477120050271
Abstract: In this talk we review the minimal embedding in $$\mathcal{N} = 2$$ , $$D = 5$$ supergravity of a five–dimensional dilaton–gravity theory that serves as a toy model for the holographic dual of six–dimensional little… read more here.
Keywords: dilaton; supergravity; linear dilaton; clockwork mechanism ... See more keywords
Modified Born-Infeld-Dilaton-Axion Coupling in Supersymmetry
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DOI: 10.3390/sym11010014
Abstract: We propose the supersymmetric extension of the modified Born–Infeld-axion-dilaton non-linear electrodynamics that has confined static abelian solutions used for describing the electromagnetic confinement in the presence of axion and dilaton fields, as well as charged… read more here.
Keywords: dilaton axion; modified born; dilaton; axion ... See more keywords