Istituto Nazionale di Alta Matematica Francesco Severi

Spinors Beyond Dirac, Weyl and Majorana: The Flag-Dipoles

Abstract We recall the Lounesto classification of 1/2-spin spinor fields, based on the vanishing of spinorial bilinear quantities: the classes are the regular spinor fields (i.e. the Dirac field), as well as singular spinor fields, also known as flag-dipole spinor fields, admitti...