Results 81 to 90 of about 2,200,433 (156)
Primordial black holes within Higgs hybrid metric-Palatini approach
European Physical Journal C: Particles and FieldsIn this paper, we investigate the production of primordial black holes (PBHs) during the radiation-dominated era. The collapse of significant density perturbations originating from large primordial scalar fluctuations generated during inflation can lead ...
Brahim Asfour +4 more
doaj +1 more source
Extreme primordial black holes
, 2021 We present a formalism for calculating the probability distribution of the most massive primordial black holes (PBHs) expected within an observational volume. We show how current observational upper bounds on the fraction of PBHs in dark matter translate
Chantavat, Teeraparb +2 more
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Primordial black holes in Gauss-Bonnet gravity
Physics Letters BIn this paper, we investigate the production of primordial black holes (PBHs) during the preheating era. Indeed, the amplification of field fluctuations can lead to the amplification of curvature perturbations.
Brahim Asfour +4 more
doaj +1 more source
Uniqueness of near-horizon geometries of rotating extremal AdS(4) black holes [PDF]
, 2009 We consider stationary extremal black hole solutions of the Einstein-Maxwell equations with a negative cosmological constant in four dimensions. We determine all non-static axisymmetric near-horizon geometries and all static near-horizon geometries for ...
Lucietti, James, Kunduri, Hari K.
core +1 more source
, 2020 Primordial Black Holes (PBHs) are appealing candidates for dark matter in the universe but are severely constrained by theoretical and observational constraints. We will focus on the Hawking evaporation limits extended to Kerr black holes. In particular,
Silk, Joseph +2 more
core +1 more source
Higher-dimensional black holes: Braneworld stars and Hawking radiation. [PDF]
, 2007 In this thesis two aspects of braneworld models are studied. A new attempt at finding the metric of a braneworld black hole within the second Randall-Sundrum model is explored. Branes containing distributions of perfect fluid are embedded in a variety of
Creek, Simon
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Microscopic Calabi-Yau Black Holes in String Theory [PDF]
, 2011 In this thesis we study microscopic aspects of Calabi-Yau black holes in string theory. We compute the absorption cross-section of the space-time massless scalars by the world-volume of D2-branes, wrapped on the S2 of an AdS_2 x S^2 x CY_3 geometry of a ...
Ansari, Saeid
core +1 more source
88th Annual Meeting of the Meteoritical Society 2026: Abstracts
Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley +1 more source
Primordial black holes and the origin of the matter-antimatter asymmetry. [PDF]
Philos Trans A Math Phys Eng Sci, 2019 García-Bellido J.
europepmc +1 more source
Black holes in the gravity/gauge theory correspondence [PDF]
, 2002 The AdS/CFT correspondence provides a microscopic description of black hole thermodynamics. In this thesis, I study the relation between the classical physics of black holes and this microscopic description.
Gregory, James Paul, Gregory, J.P.
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