Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields
Observability of 2π rotations: A proposed experiment
A. G. Klein, G. I. Opat
Abstract
Rotations by $2\ensuremath{\pi}$ radians of spin-\textonehalf{} systems are predicted to give rise to factors of -1 in the wave function. We propose an experiment involving Fresnel diffraction of thermal neutrons to test this proposition.