Results 31 to 40 of about 38,497 (193)
Spin of primordial black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 JCAP version.
Mirbabayi, Mehrdad +2 more
openaire +3 more sources
GW200105 and GW200115 are compatible with a scenario of primordial black hole binary coalescences
European Physical Journal C: Particles and Fields, 2022 Two gravitational wave events, i.e. GW200105 and GW200115, were observed by the Advanced LIGO and Virgo detectors recently. In this work, we show that they can be explained by a scenario of primordial black hole binaries that are formed in the early ...
Sai Wang, Zhi-Chao Zhao
doaj +1 more source
Primordial Kerr Black Holes [PDF]
Proceedings of 40th International Conference on High Energy physics — PoS(ICHEP2020), 2021 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, we will discuss the possibility to distinguish between black holes of primordial and of stellar ...
Arbey, Alexandre +2 more
openaire +2 more sources
Novel Optoelectronic Reconfigurable Transistors Based on Graphene/VO<sub>2</sub> Heterojunction for Efficient Neuromorphic Perception, Computation, and Storage. [PDF]
Adv Sci (Weinh)A novel optoelectronic reconfigurable neuromorphic transistor based on a graphene/VO2 heterojunction with inserted Au electrodes is proposed. It exhibits broad‐spectrum self‐powered photodetection capability ranging from 365 to 940 nm. Through bias control and electrode sizing strategies, multiple functions for switch, synapse, and storage are achieved,
Chen D +10 more
europepmc +2 more sources
Research in Astronomy and Astrophysics, 2010 Invited contribution to Recent Advances on the Physics of Compact Objects and Grvitational Waves, 2007, Ed.
openaire +3 more sources
Primordial black holes from α-attractors [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 We consider primordial black hole (PBH) production in inflationary $ $-attractors. We discuss two classes of models, namely models with a minimal polynomial superpotential as well as modulated chaotic ones that admit PBHs. We find that a significant amplification of the curvature power spectrum ${\cal P_R}$ can be realized in this class of models with
Dalianis, Ioannis +2 more
openaire +2 more sources
GUT baryogenesis with primordial black holes [PDF]
Physical Review D, 2021 12 pages, 4 figures, 1 ...
Hooper, Dan, Krnjaic, Gordan
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Proceedings of 2nd World Summit: Exploring the Dark Side of the Universe — PoS(EDSU2018), 2018 Primordial Black Holes (PBH) can form after inflation due to high peaks in the primordial curvature power spectrum that collapse gravitationally during the radiation era, to form clusters of black holes that merge and increase in mass after recombination, generating today a broad mass-spectrum of black holes with masses ranging from 0.01 to $10^3~M_ ...
openaire +1 more source
PRIMORDIAL BLACK HOLE FORMATION FROM INFLATON [PDF]
International Journal of Modern Physics D, 2000 Measurements of the distances to SNe Ia have produced strong evidence that the expansion of the Universe is really accelarating, implying the existence of a nearly uniform component of dark energy with the simplest explanation as a cosmological constant.
Meng, Xinhe, Wang, Bin, Feng, S.
openaire +2 more sources
Heavy Primordial Black Holes from Strongly Clustered Light Black Holes
Physical Review Letters, 2023 6 pages, 2 figures.
De Luca, Valerio +2 more
openaire +4 more sources