Results 41 to 50 of about 9,742,280 (331)
Analytic solutions in Einstein-aether scalar field cosmology
European Physical Journal C: Particles and Fields, 2020 In the context of Einstein-aether scalar field cosmology we solve the field equations and determine exact and analytic solutions. In particular, we consider a model proposed by Kanno and Soda where the aether and the scalar fields interact through the ...
Andronikos Paliathanasis, Genly Leon
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Horizon curvature and spacetime structure influences on black hole scalarization
European Physical Journal C: Particles and Fields, 2021 Black hole spontaneous scalarization has been attracting more and more attention as it circumvents the well-known no-hair theorems. In this work, we study the scalarization in Einstein–scalar-Gauss–Bonnet theory with a probe scalar field in a black hole ...
Hong Guo +3 more
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Gravitation in Unified Scalar Field Theory
Universe, 2021 The scalar field of space-time film is considered as unified fundamental field. The field model under consideration is the space-time generalization of the model for a two-dimensional thin film.
Alexander A. Chernitskii
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Slowly rotating neutron stars in scalar-tensor theories with a massive scalar field [PDF]
, 2016 In the scalar-tensor theories with a massive scalar field the coupling constants, and the coupling functions in general, which are observationally allowed, can differ significantly from those in the massless case.
S. Yazadjiev, D. Doneva, Dimitar Popchev
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Scalar Perturbations in Scalar Field Quantum Cosmology
, 2009 In this paper it is shown how to obtain the simplest equations for the Mukhanov-Sasaki variables describing quantum linear scalar perturbations in the case of scalar fields without potential term.
B. Hatfield +4 more
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Rapidly rotating neutron stars with a massive scalar field—structure and universal relations [PDF]
, 2016 We construct rapidly rotating neutron star models in scalar-tensor theories with a massive scalar field. The fact that the scalar field has nonzero mass leads to very interesting results since the allowed range of values of the coupling parameters is ...
D. Doneva, S. Yazadjiev
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Journal of Fluid Science and Technology, 2013 Turbulent plane jets are prototypical free shear flows on which fundamental research can expand the overall understanding of turbulent flows. In this study, flow characteristics of the turbulent plane jets are studied by means of direct numerical ...
Nannan WU +5 more
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Group field theory for quantum gravity minimally coupled to a scalar field [PDF]
, 2017 We construct a group field theory model for quantum gravity minimally coupled to relativistic scalar fields, defining as well a corresponding discrete gravity path integral (and, implicitly, a coupled spin foam model) in its Feynman expansion.
Yang Li, D. Oriti, Mingyi Zhang
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Interacting generalized anisotropic scalar field models
European Physical Journal C: Particles and Fields, 2021 This paper is devoted to investigate the interacting generalized ghost pilgrim dark energy model in the background of anisotropic universe in general relativity.
Wajiha Javed +2 more
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Dynamical Analysis of Scalar Field Cosmologies with Spatial Curvature
The Open Journal of Astrophysics, 2016 We explore the dynamical behaviour of cosmological models involving a scalar field (with an exponential potential and a canonical kinetic term) and a matter fluid with spatial curvature included in the equations of motion.
Mateja Gosenca, Peter Coles
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