Neutron interferometer
As pointed out by de Broglie in his PhD thesis, particles, including neutrons, can behave like waves (the so-called wave–particle duality, now explained in the general framework of quantum mechanics).The wave functions of the individual interferometer paths are created and recombined coherently which needs the application of dynamical theory of diffraction.In 1975 Werner and Overhauser demonstrated quantum phase shifts on neutron matter waves due to gravity.Modern semiconductor technology allows large single-crystal silicon boules to be easily grown.They are artificially holographically produced, i.e., by means of a light-optic two-wave interference setup illuminating a photo-neutron-refractive polymer.