Results 21 to 30 of about 9,742,280 (331)
Weak cosmic censorship conjecture in Kerr-(anti-)de Sitter black hole with scalar field [PDF]
Journal of High Energy Physics, 2018 We investigate the weak cosmic censorship conjecture in Kerr-(anti-)de Sitter black holes under the scattering of a scalar field. We test the conjecture in terms of whether the black hole can exceed the extremal condition with respect to its change ...
Bogeun Gwak
semanticscholar +1 more source
Construction of inflationary scenarios with the Gauss–Bonnet term and nonminimal coupling
European Physical Journal C: Particles and Fields, 2021 Inflationary models with a scalar field nonminimally coupled both with the Ricci scalar and with the Gauss–Bonnet term are studied. We propose the way of generalization of inflationary scenarios with the Gauss–Bonnet term and a scalar field minimally ...
Ekaterina O. Pozdeeva, Sergey Yu. Vernov
doaj +1 more source
Strong cosmic censorship for the massless charged scalar field in the Reissner-Nordstrom–de Sitter spacetime [PDF]
Physical Review D, 2018 It has recently been shown that the strong cosmic censorship conjecture can be violated by the massless neutral scalar field in the nearly extremal Reissner-Nordstrom--de Sitter black hole.
Yuyu Mo +4 more
semanticscholar +1 more source
Regressive and generative neural networks for scalar field theory [PDF]
Physical Review D, 2018 We explore the perspectives of machine learning techniques in the context of quantum field theories. In particular, we discuss two-dimensional complex scalar field theory at nonzero temperature and chemical potential---a theory with a nontrivial phase ...
K. Zhou +3 more
semanticscholar +1 more source
Long-Range Scalar Forces in Five-Dimensional General Relativity
Advances in Mathematical Physics, 2020 We present new results regarding the long-range scalar field that emerges from the classical Kaluza unification of general relativity and electromagnetism.
L. L. Williams
doaj +1 more source
Universe, 2023 We discuss the problem of the quantization and dynamic evolution of a scalar free field in the interior of a Schwarzschild black hole. A unitary approach to the dynamics of the quantized field is proposed: a time-dependent Hamiltonian governing the ...
Pawel Gusin +5 more
doaj +1 more source
Scalar Field Inhomogeneous Cosmologies [PDF]
, 1995 Some exact solutions for the Einstein field equations corresponding to inhomogeneous $G_2$ cosmologies with an exponential-potential scalar field which generalize solutions obtained previously are considered.
Feinstein, A., Ibáñez, J., Labraga, P.
core +2 more sources
Cosmological consequences of a rolling homogeneous scalar field.
Physical Review D, Particles and fields, 1988 The cosmological consequences of a pervasive, rolling, self-interacting, homogeneous scalar field are investigated. A number of models in which the energy density of the scalar field red-shifts in a specific manner are studied.
Bharat Ratra, P. Peebles
semanticscholar +1 more source
Differences between scalar field and scalar density solutions [PDF]
, 2007 We explore differences between scalar field, and scalar density solutions by using Robertson-Walker (RW) metric, and also a non-relativistic Hamiltonian is derived for a scalar density field in the post-Newtonian approximation.
Pirinççioglu, Nurettin, Sert, Ilker
core +2 more sources
Searching for an Oscillating Massive Scalar Field as a Dark Matter Candidate Using Atomic Hyperfine Frequency Comparisons. [PDF]
Physical Review Letters, 2016 We use 6 yrs of accurate hyperfine frequency comparison data of the dual rubidium and caesium cold atom fountain FO2 at LNE-SYRTE to search for a massive scalar dark matter candidate.
A. Hees +5 more
semanticscholar +1 more source