Speaker
Description
We propose an experiment to search for spin-velocity-dependent interactions with an interaction range of roughly 10 nm by exploiting neutron whispering gallery states. These are quantum states in which neutrons are confined near the surface of a concave mirror by the material potential and the centrifugal potential. Because the characteristic interference fringes of neutron whispering gallery states appear as oscillations in the neutron-wavelength spectrum, these states are highly sensitive to additional short-range potentials near the mirror surface. We present the first measurement of the neutron whispering gallery states using a pulsed neutron source and outline how this technique can be applied to probe hypothetical spin-velocity-dependent interactions.
