Articles with "horizon" as a keyword



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Innovating beyond the horizon: CEO career horizon, top management composition, and R&D intensity

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Published in 2017 at "Human Resource Management"

DOI: 10.1002/hrm.21730

Abstract: Decreasing research and development (R&D) can impair the ability of firms to remain innovative in the long run. CEOs have been accused of curtailing R&D investments as they approach expected retirement, yet received findings on… read more here.

Keywords: tmt; beyond horizon; top management; management ... See more keywords
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Charged scalar-tensor solitons and black holes with (approximate) Anti-de Sitter asymptotics

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Published in 2019 at "Journal of High Energy Physics"

DOI: 10.1007/jhep01(2019)142

Abstract: A bstractWe discuss charged and static solutions in a shift-symmetric scalar-tensor gravity model including a negative cosmological constant. The solutions are only approximately Anti-de Sitter (AdS) asymptotically. While spherically symmetric black holes with scalar-tensor hair… read more here.

Keywords: black holes; scalar tensor; anti sitter; tensor solitons ... See more keywords
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Planckian physics comes into play at Planckian distance from horizon

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Published in 2022 at "Journal of High Energy Physics"

DOI: 10.1007/jhep01(2022)019

Abstract: Abstract In the background of a gravitational collapse, we compute the transition amplitudes for the creation of particles for distant observers due to higher-derivative interactions in addition to Hawking radiation. The amplitudes grow exponentially with… read more here.

Keywords: physics comes; physics; planckian physics; comes play ... See more keywords
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Quantum gravity on the black hole horizon

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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
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T-Witts from the horizon

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Published in 2020 at "Journal of High Energy Physics"

DOI: 10.1007/jhep04(2020)128

Abstract: Expanding around null hypersurfaces, such as generic Kerr black hole horizons, using co-rotating Kruskal-Israel-like coordinates we study the associated surface charges, their symmetries and the corresponding phase space within Einstein gravity. Our surface charges are… read more here.

Keywords: witts horizon; horizon;
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Non-local geometry inside Lifshitz horizon

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Published in 2017 at "Journal of High Energy Physics"

DOI: 10.1007/jhep07(2017)056

Abstract: A bstractBased on the quantum renormalization group, we derive the bulk geometry that emerges in the holographic dual of the fermionic U(N ) vector model at a nonzero charge density. The obstruction that prohibits the… read more here.

Keywords: non local; local geometry; geometry; horizon ... See more keywords
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What’s inside a hairy black hole in massive gravity?

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Published in 2021 at "Journal of High Energy Physics"

DOI: 10.1007/jhep10(2021)098

Abstract: Abstract In the context of massive gravity theories, we study holographic flows driven by a relevant scalar operator and interpolating between a UV 3-dimensional CFT and a trans-IR Kasner universe. For a large class of… read more here.

Keywords: horizon; inside hairy; black hole; massive gravity ... See more keywords
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Mass Inflation and the $$C^2$$ C 2 -inextendibility of Spherically Symmetric Charged Scalar Field Dynamical Black Holes

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Published in 2020 at "Communications in Mathematical Physics"

DOI: 10.1007/s00220-020-03923-w

Abstract: It has long been suggested that the Cauchy horizon of dynamical black holes is subject to a weak null singularity, under the mass inflation scenario. We study in spherical symmetry the Einstein–Maxwell–Klein–Gordon equations and while… read more here.

Keywords: horizon; cauchy horizon; scalar field; mass inflation ... See more keywords
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Causal horizons in a bouncing universe

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Published in 2018 at "General Relativity and Gravitation"

DOI: 10.1007/s10714-018-2443-8

Abstract: As our understanding of the past in a bouncing universe is limited, it becomes difficult to propose a cosmological model which can give some understanding of the causal structure of the bouncing universe. In this… read more here.

Keywords: bouncing universe; particle horizon; causal; model ... See more keywords
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Thermodynamics of a static electric-magnetic black hole in Einstein-Born-Infeld-AdS theory with different horizon geometries

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Published in 2021 at "General Relativity and Gravitation"

DOI: 10.1007/s10714-021-02842-y

Abstract: We consider black hole solutions with electric and magnetic sources in the four-dimensional Einstein-Born-Infeld-AdS theory with spherical, planar and hyperbolic horizon geometries. Exact analytical solutions for the metric function, electric and magnetic fields were obtained… read more here.

Keywords: black hole; electric magnetic; horizon; thermodynamics ... See more keywords
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A novel approach for detecting the horizon using a convolutional neural network and multi-scale edge detection

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Published in 2019 at "Multidimensional Systems and Signal Processing"

DOI: 10.1007/s11045-018-0602-4

Abstract: This paper proposes a novel method for horizon detection that combines a multi-scale approach and a convolutional neural network (CNN). The ability to detect the horizon is the first step toward situational awareness of autonomous… read more here.

Keywords: method; multi scale; edge detection; horizon ... See more keywords