Static forces and virtual-particle exchange: Difference between revisions

Revision as of 03:27, 16 August 2010

Revision as of 03:29, 16 August 2010

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</math>

where <math> \hat O </math> is a differential operator with <math> \varphi </math> and <math> J </math> functions of [[spacetime]]. The first term in the argument represents the free particle ndand the second term represents the disturbance to the field from an external source such as a charge or a mass.

The integral can be written (see [[Common integrals in quantum field theory]])