Results 231 to 240 of about 48,973 (266)

Quaternion scalar field

Physical Review D, 1992
We discuss the extension of a version of quaternion quantum mechanics to field theory and in particular to the simplest example, the free scalar field. A previous difficulty with the conservation of four-momentum for the "anomalous" bosonic particles is resolved.
S. DE LEO, ROTELLI, Pietro
openaire   +3 more sources

NEUTRON STARS AND SCALAR FIELDS

International Journal of Modern Physics D, 1993
We calculate and discuss the possible consequences of the existence of light scalar particles on the properties of neutron stars. We take the mass and coupling to matter of this hypothetical scalar to be free parameters in our model and present results for a wide range of these.
Benson, G. J., Moorhouse, R. G., Henriques, A. B.   +2 more
openaire   +2 more sources

Geometrization of a Massive Scalar Field

Journal of Mathematical Physics, 1971
This paper presents the necessary and sufficient conditions that a Riemannian geometry have as its source a real or complex massive scalar field.
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A Scalar Representation of Electromagnetic Fields

Proceedings of the Physical Society. Section A, 1953
It is shown that the scalar representation of electromagnetic fields introduced in an earlier paper leads to a new model for energy transport. The energy may be considered to be carried by two mutually incoherent scalar waves, each of which arises from contributions of circularly polarized components of the same helicity.
Green, H. S., Wolf, E.
openaire   +2 more sources

Scalar field-dominated cosmologies

Conference on 3K cosmology, 1999
We examine some new aspect of “Quintessence” models, where a minimally-coupled scalar field is thought to be a suitable candidate for the missing energy in the Universe. In particular, we give emphasis on the problem of initial conditions, finding the values of the scalar field and of its first time derivative that realize initial adiabaticity or ...
Perrotta, F., Baccigalupi, C.
openaire   +2 more sources

HOMOGENIZATION OF SCALAR FIELD COSMOLOGIES

The Thirteenth Marcel Grossmann Meeting, 2015
Nonlinear scalar fields have been important to model the presently observed accelerated cosmological expansion as well as the inflationary phase of the early universe. An underlying mathematical property is common to these two epochs: The presently observed universe is approximately homogeneous on sufficiently large scales and, in turn, inflation ...
Alho, Artur, Mena, Filipe C.
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Symmetries of scalar fields. II

Theoretical and Mathematical Physics, 1983
Translation from Teor. Mat. Fiz. 55, No.2, 197-204 (Russian) (1983; Zbl 0517.35072).
openaire   +4 more sources

Explorability of a turbulent scalar field

2017 American Control Conference (ACC), 2017
In this paper we extend the concept of explorability of noisy scalar fields to turbulent scalar fields. Since turbulent fields are prone to sporadic measurement, we use expected value of rate of measurements to estimate the rate of measurement at a location and use this estimate to define explorability of a turbulent scalar field.
Vivek Mishra, Fumin Zhang 0001
openaire   +1 more source

SCALAR AND VECTOR FIELDS

1977
D.E. Bourne, P.C. Kendall
openaire   +1 more source

Scalar fields

2023
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