String-localized covariant quantum fields

Abstract

We present a construction of string-localized covariant free quantum fields for a large class of irreducible (ray) representations of the Poincaré group. Among these are the representations of mass zero and infinite spin, which are known to be incompatible with point-like localized fields. (Based on joint work with B. Schroer and J. Yngvason [13].).