Results 41 to 50 of about 9,449,404 (314)
Stability of a Noncanonical Scalar Field Model during Cosmological Date
Advances in High Energy Physics, 2016 Using the noncanonical model of scalar field, the cosmological consequences of a pervasive, self-interacting, homogeneous, and rolling scalar field are studied.
Z. Ossoulian +3 more
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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
semanticscholar +1 more source
BQP-completeness of scattering in scalar quantum field theory [PDF]
Quantum, 2017 Recent work has shown that quantum computers can compute scattering probabilities in massive quantum field theories, with a run time that is polynomial in the number of particles, their energy, and the desired precision.
S. Jordan +3 more
semanticscholar +1 more source
Fractional Scalar Field Cosmology
Fractal and FractionalConsidering the Friedmann–Lemaître–Robertson–Walker (FLRW) metric and the Einstein scalar field system as an underlying gravitational model to construct fractional cosmological models has interesting implications in both classical and quantum regimes ...
Seyed Meraj Mousavi Rasouli +2 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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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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General Analytic Solutions of Scalar Field Cosmology with Arbitrary Potential [PDF]
, 2016 We present the solution space for the case of a minimally coupled scalar field with arbitrary potential in a FLRW metric. This is made possible due to the existence of a nonlocal integral of motion corresponding to the conformal Killing field of the two ...
N. Dimakis +5 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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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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Cosmological evolution of a complex scalar field with repulsive or attractive self-interaction [PDF]
, 2016 We study the cosmological evolution of a complex scalar field with a self-interaction potential $V(|\varphi|^2)$, possibly describing self-gravitating Bose-Einstein condensates, using a fully general relativistic treatment. We generalize the hydrodynamic
A. Su'arez, P. Chavanis
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