Greenberger, Daniel M. Department of Physics, City College of the City University of New York, New York, New York.
- Neutron interferometer
- Gravity experiment
- Rotation of wave function by 360°
- Superposition principle
- Ultracold neutron resonances
- Links to Primary Literature
- Additional Readings
The general class of experiments designed to emphasize the wavelike character of neutrons. Like all elementary particles, neutrons can be made to display wavelike, as well as particlelike, behavior. They can be reflected and refracted, and they can scatter, diffract, and interfere, like light or any other type of wave. Many classical optical effects, such as Fresnel diffraction, have been performed with neutrons, including even those involving the construction of Fresnel zone plates. A perfect double-slit neutron interference pattern is shown in Fig. 1. This pattern not only conforms closely to the predictions of scalar diffraction theory, but can be used to put a stringent upper limit on possible nonlinear contributions to the Schrödinger equation, which determines how the neutron propagates. See also: Diffraction; Interference of waves; Reflection of electromagnetic radiation; Refraction of waves; Scattering of electromagnetic radiation; Wave (physics)
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