Results 11 to 20 of about 670,040 (334)
Dynamics in Interacting Scalar-Torsion Cosmology
Universe, 2021 In a spatially flat Friedmann–Lemaître–Robertson–Walker background space, we consider a scalar-torsion gravitational model which has similar properties to the dilaton theory. This teleparallel model is invariant under a discrete transformation similar to
Andronikos Paliathanasis
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Electrostatic and scalar fields [PDF]
Relativistic Plasma Waves and Particle Beams as Coherent and Incoherent Radiation Sources IV, 2021 The theory of electrostatics is embedded within Maxwell’s electrodynamics, which is one of the most successful physical theories ever produced. However, a more direct generalisation of electrostatics to make it compatible with relativity would have been to replace it with the sourced massless Klein-Gordon equation.
Noble, Adam, Jaroszynski, Dino A.
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Generic Three-Parameter Wormhole Solution in Einstein-Scalar Field Theory
Particles, 2021 An exact analytical, spherically symmetric, three-parametric wormhole solution has been found in the Einstein-scalar field theory, which covers the several well-known wormhole solutions.
Bobur Turimov +3 more
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Journal of High Energy Physics, 2014 In this paper we give a variation of the gauge procedure which employs a scalar gauge field, $B (x)$, in addition to the usual vector gauge field, $A_ (x)$. We study this variant of the usual gauge procedure in the context of a complex scalar, matter field $ (x)$ with a U(1) symmetry.
Eduardo Guendelman +2 more
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Painlevé Analysis of the Cosmological Field Equations in Weyl Integrable Spacetime
Universe, 2022 We apply a singularity analysis to investigate the integrability properties of the gravitational field equations in Weyl Integrable Spacetime for a spatially flat Friedmann–Lemaître–Robertson–Walker background spacetime induced by an ideal gas.
Andronikos Paliathanasis
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Differences between scalar field and scalar density field solutions [PDF]
Canadian Journal of Physics, 2012 Differences between scalar field and scalar density solutions are explored using a Robertson–Walker (RW) metric, and a nonrelativistic Hamiltonian is derived for a scalar density field in the post-newtonian approximation. The results are compared with those of a scalar field.
Sert I., Pirinççiog˜lu N.
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AdS/BCFT with brane-localized scalar field
Journal of High Energy Physics, 2023 In this paper, we study the dynamics of end-of-the-world (EOW) branes in AdS with scalar fields localized on the branes as a new class of gravity duals of CFTs on manifolds with boundaries.
Hiroki Kanda +4 more
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Analytical investigations on non-minimally coupled scalar fields outside neutral reflecting shells
European Physical Journal C: Particles and Fields, 2023 We study the existence of scalar fields outside neutral reflecting shells. We consider static massive scalar fields non-minimally coupled to the Gauss–Bonnet invariant.
Yan Peng
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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
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Quantization in background scalar fields [PDF]
Physical Review D, 2020 54 pages, 12 figures.
E. T. Akhmedov +2 more
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