The Theory of Metaparticles

Understand

We introduce and develop the theory of metaparticles.

• At the classical level, this is a world-line theory with the usual reparameterization invariance and two additional features.
• The theory is motivated by string theory on compact targets, and can be thought of, at least at the non-interacting level, as a theory of particles at a given string level, or as a particle model for Born geometries.
• The first additional feature of the model is the presence of an additional local symmetry, which from the string point of view corresponds to the completion of worldsheet diffeomorphism invariance.