Noun
One who propagates; one who continues or multiplies.
Source: Webster's dictionaryA fermionic propagator is represented by a solid line (with an arrow in one or another direction) connecting two vertices, (•←•). Source: Internet
Dunnigan clearly places Featherstone in his role as a key propagator of wargaming as a hobby and tool for professionals. Source: Internet
Compton scattering and annihilation/generation of pairs Another interesting term in the expansion is : where : is the fermionic contraction (propagator). Source: Internet
Connected diagrams: linked-cluster theorem Roughly speaking, a Feynman diagram is called connected if all vertices and propagator lines are linked by a sequence of vertices and propagators of the diagram itself. Source: Internet
Scalar propagator Each mode is independently Gaussian distributed. Source: Internet
Schwinger representation The Euclidean scalar propagator has a suggestive representation: :: The meaning of this identity (which is an elementary integration) is made clearer by Fourier transforming to real space. Source: Internet