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Do scalar fields make instantons
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This article is published in Lettere Al Nuovo Cimento.The article was published on 1977-09-01. It has received 2 citations till now. The article focuses on the topics: Scalar field & Scalar theories of gravitation.read more
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Scalar–vector instantons in n dimensions: Surface terms
K. Cahill,A. Comtet +1 more
TL;DR: In this article, it was shown that the equations of motion for a non-Abelian gauge field coupled to a scalar field possess no regular, finite-action solutions in n-dimensional Euclidean space except for n = 4, with Φ trivial, and for n < 4.
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Nonexistence of finite-energy solutions in some gauge models
J. Dittrich,Pavel Exner +1 more
TL;DR: In this article, a theorem which forbids the existence of certain nontrivial static finite-energy classical solutions to Yang-Mills-Higgs equations in dependence on the spatial dimension is generalized to include fields with nonvanishing electric-like components.
References
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Magnetic monopoles in unified gauge theories
TL;DR: In this article, it was shown that in all those gauge theories in which the electromagnetic group U(1) is taken to be a subgroup of a larger group with a compact covering group, like SU(2) or SU(3), genuine magnetic monopoles can be created as regular solutions of the field equations.
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Pseudoparticle Solutions of the Yang-Mills Equations
TL;DR: In this article, the authors find regular solutions of the four dimensional euclidean Yang-Mills equations and show that these solutions minimize locally the action integrals, which is finite in this case.
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Vortex Line Models for Dual Strings
Holger Bech Nielsen,Poul Olesen +1 more
TL;DR: In this paper, it was shown that a Higgs type of Lagrangian allows for vortex-line solutions, in analogy with the vortex lines in a type II superconductor.
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A new improved energy-momentum tensor
TL;DR: In this paper, it was shown that the matrix elements of the symmetric energy-momentum tensor are cut-off dependent in renormalized perturbation theory for most renormalizable field theories.