Small free field inflation in higher curvature gravity
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DOI: 10.1007/jhep01(2021)029
Abstract: Within General Relativity, a minimally coupled scalar field governed by a quadratic potential is able to produce an accelerated expansion of the universe provided its value and excursion are larger than the Planck scale. This… read more here.
Keywords: field; higher curvature; inflation; small free ... See more keywords
Generalized Lense-Thirring metrics: higher-curvature corrections and solutions with matter
Sign Up to like & getrecommendations! Published in 2022 at "Journal of High Energy Physics"
DOI: 10.1007/jhep04(2022)070
Abstract: Abstract The Lense-Thirring spacetime describes a 4-dimensional slowly rotating approximate solution of vacuum Einstein equations valid to a linear order in rotation parameter. It is fully characterized by a single metric function of the corresponding… read more here.
Keywords: higher curvature; characterized single; metric function; lense thirring ... See more keywords
Universal renormalization procedure for higher curvature gravities in D ≤ 5
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DOI: 10.1007/jhep09(2021)142
Abstract: Abstract We implement a universal method for renormalizing AdS gravity actions applicable to arbitrary higher curvature theories in up to five dimensions. The renormalization procedure considers the extrinsic counterterm for Einstein-AdS gravity given by the… read more here.
Keywords: gravity; higher curvature; renormalization procedure;
Bit threads in higher-curvature gravity
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DOI: 10.1007/jhep11(2018)168
Abstract: A bstractWe generalize holographic bit threads to bulk theories with a gravitational action containing higher-curvature terms. Bit threads are a reformulation of holographic entanglement entropy, where the entropy is given by the maximum number of… read more here.
Keywords: gravity; bit threads; higher curvature; threads higher ... See more keywords
BTZ black holes with higher curvature corrections in the 3D Einstein-Lovelock gravity
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DOI: 10.1103/physrevd.102.064004
Abstract: The regularization procedure for getting the four-dimensional nontrivial Einstein-Gauss-Bonnet effective description of gravity and its Lovelock generalization has been recently developed. Here we propose the regularization for the three-dimensional gravity, which is based on the… read more here.
Keywords: btz black; higher curvature; black holes; gravity ... See more keywords
Softly broken conformal symmetry with higher curvature terms
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DOI: 10.1103/physrevd.102.064030
Abstract: In a scalar-coupled-gravity model, the quadratically divergent counter term appearing in the mass renormalization of the scalar fields must inherit corrections arising out of gravitational interactions. In this work we have explicitly demonstrated that there… read more here.
Keywords: higher curvature; theory; broken conformal; gravity ... See more keywords
Higher-curvature corrections and tensor modes
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DOI: 10.1103/physrevd.103.043515
Abstract: Higher-curvature corrections to the effective gravitational action may leave signatures in the spectrum of primordial tensor perturbations if the inflationary energy scale is sufficiently high. In this paper, we further investigate the effects of a… read more here.
Keywords: higher curvature; curvature corrections; curvature; tensor modes ... See more keywords
Restricted Phased Space Thermodynamics for Black Holes in Higher Dimensions and Higher Curvature Gravities
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DOI: 10.3390/e24081131
Abstract: The recently proposed restricted phase space thermodynamics is shown to be applicable to a large class of higher dimensional higher curvature gravity models coupled to Maxwell field, which are known as black hole scan models… read more here.
Keywords: gravity models; space thermodynamics; higher curvature; thermodynamics ... See more keywords