Results 11 to 20 of about 2,200,433 (156)
Turning in the landscape: A new mechanism for generating primordial black holes
Physics Letters B, 2023 We propose a new model-independent mechanism for producing primordial black holes from a period of multi-field inflation. This requires an enhancement of primordial fluctuations at short scales compared to their value at CMB scales.
Jacopo Fumagalli +3 more
doaj +3 more sources
Inflation and Primordial Black Holes
Universe, 2023 We review conceptual aspects of inflationary scenarios able to produce primordial black holes by amplifying the size of curvature fluctuations to the level required to trigger black hole formation. We identify general mechanisms to do so, both for single-
Ogan Özsoy, Gianmassimo Tasinato
doaj +3 more sources
Primordial black holes and their gravitational-wave signatures [PDF]
Living Reviews in RelativitySebastien Clesse, Juan García-Bellido
exaly +2 more sources
Einstein-Yang-Mills black holes in anti de-Sitter space [PDF]
, 2012 In this thesis we consider Einstein-Yang-Mills black holes in asymptotically anti-de Sitter space, in the presence of an su(N) gauge eld. For a purely magnetic gauge eld we de ne a set of charges, namely the mass and N - 1 gauge invariant magnetic ...
Shepherd, Benjamin L
core +6 more sources
Primordial black holes in non-linear perturbation theory [PDF]
, 2009 PhDThe thesis begins with a study of the origin of non-linear cosmological fluctuations. In particular, a class of models of multiple field inflation are considered, with specific reference to those cases in which the non-Gaussian correlation functions
Hidalgo-Cuellar, Juan Carlos
core +4 more sources
Primordial black holes as a probe of strongly first-order electroweak phase transition
Physics Letters B, 2022 Primordial black holes can be produced by density fluctuations generated from delayed vacuum decays of first-order phase transition. The primordial black holes generated at the electroweak phase transition have masses of about 10−5 solar mass.
Katsuya Hashino +2 more
doaj +1 more source
Black holes at accelerators [PDF]
, 2010 In theories with large extra dimensions and TeV-scale gravity, black holes are copiously produced in particle collisions at energies well above the Planck scale.
core +9 more sources
Physics Letters B, 2023 We investigate production of primordial black holes from first-order electroweak phase transition in the framework of the nearly aligned Higgs effective field theory, in which non-decoupling quantum effects are properly described.
Katsuya Hashino +3 more
doaj +1 more source
Origin and growth of primordial black holes
Physics Letters B, 2021 Building on the insight that primordial black holes can arise from the formation and subsequent gravitational collapse of bound states of stable supermassive elementary particles during the early radiation era, we offer a comprehensive picture describing
Krzysztof A. Meissner, Hermann Nicolai
doaj +1 more source
European Physical Journal C: Particles and Fields, 2023 The observational data of primordial black holes and scalar-induced gravitational waves can constrain the primordial curvature perturbation at small scales. We parameterize the primordial curvature perturbation by a broken power law form and find that it
Zhu Yi, Qin Fei
doaj +1 more source