Results 11 to 20 of about 1,145,029 (201)

Complex scalar fields in scalar-tensor and scalar-torsion theories [PDF]

open access: yesModern Physics Letters A, 2022
In this paper, we investigate the cosmological dynamics in a spatially flat Friedmann–Lemaître–Robertson–Walker geometry in scalar-tensor and scalar-torsion theories where the nonminimally coupled scalar field is a complex field. We derive the cosmological field equations and we make use of dimensionless variables in order to determine the stationary ...
openaire   +3 more sources

Static and slowly rotating neutron stars in scalar-tensor theory with self-interacting massive scalar field [PDF]

open access: yesEur Phys J C Part Fields, 2018
Binary pulsar observations and gravitational wave detections seriously constrained scalar-tensor theories with massless scalar field allowing only small deviations from general relativity.
Doneva, Daniela D.   +3 more
core   +2 more sources

Electrostatic and scalar fields [PDF]

open access: yesRelativistic 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.
openaire   +3 more sources

Duality family of scalar field [PDF]

open access: yesNuclear Physics B, 2021
We show that there exists a duality family of self-interacting massive scalar fields. The scalar field in a duality family are related by a duality transformation. Such a duality of scalar fields is a field version of the Newton-Hooke duality in classical mechanics.
Wen-Du Li, Wen-Du Li, Wu-Sheng Dai
openaire   +3 more sources

Scalar gauge fields [PDF]

open access: yesJournal 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
openaire   +4 more sources

Quantization in background scalar fields [PDF]

open access: yesPhysical Review D, 2020
54 pages, 12 figures.
E. T. Akhmedov   +2 more
openaire   +3 more sources

Scalar Hairy Black Holes in the presence of Nonlinear Electrodynamics [PDF]

open access: yesPhys. Rev. D 101, 124023 (2020), 2020
We study influence of scalar fields on Nonlinear Electrodynamics spacetimes. The investigation is carried out using both test and gravitating scalar fields. After revisiting Einstein-Maxwell scalar field solutions we focus on analytic investigation of Nonlinear Electrodynamics scalar field spacetimes, especially Square Root Lagrangian model.
arxiv   +1 more source

Analytical investigations on non-minimally coupled scalar fields outside neutral reflecting shells [PDF]

open access: yes, 2022
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. We analytically investigated properties of scalar fields through the scalar field equation.
arxiv   +1 more source

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