A simple calculation is made where the zero-point energy is obtained for a spherical Casimir
cavity the size of the classical electron radius. The result is found to be roughly equivalent to the
rest mass-energy of an electron-positron pair. A discussion is provided from this that suggests a
possible contributing mechanism for pair production. It is suggested how the virtual spherical
cavity could come about in the presence of a background E&M field and that such cavities could
be viewed as a dynamic virtual potential energy field.
Category: High Energy Particle Physics