PARTICLE MOTION AND INTERACTION IN NONLINEAR FIELD THEORIES

被引:11
作者
DERRICK, GH
KAYKONG, W
机构
[1] Department of Theoretical Physics, School of Physical Sciences, University of St. Andrews, St. Andrews, Fife
关键词
D O I
10.1063/1.1664573
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A variational method is given for determining the motion and interaction of particles associated with fields governed by nonlinear differential equations. For field equations derived from Lagrangian densities of the type g ικ(∂θ/∂xι)(∂θ/ ∂xκ) + f(θ), one obtains an attractive inverse-square law of force between like particles, provided f(θ) vanishes more rapidly than (constant) θ4 for θ → 0.
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页码:232 / &
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