Measurement of Neutron Whispering Gallery States Using a Pulsed Neutron Beam

• URL: http://arxiv.org/abs/2502.18936v3
• Date: Fri, 18 Apr 2025 06:24:34 GMT
• Title: Measurement of Neutron Whispering Gallery States Using a Pulsed Neutron Beam
• Authors: Go Ichikawa, Kenji Mishima,
• Abstract summary: A neutron whispering gallery state is a quantum state localized on a material surface bound by the centrifugal force and the material potential.<n>We observed a neutron whispering gallery state on a $mathrmSiO$ concave mirror using a pulsed cold neutron beam.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: A neutron whispering gallery state is a quantum state localized on a material surface bound by the centrifugal force and the material potential. Precise measurements of such quantum states enable tests of quantum mechanics in non-inertial frames, characterization of the surface potential, and searches for hypothetical short-range interactions at the nanometer scale. We observed a neutron whispering gallery state on a $\mathrm{SiO}_2$ concave mirror using a pulsed cold neutron beam. The measured results agree with theoretical calculations within $1.9\%$ for the centrifugal acceleration $a \approx 7\times 10^7\,\mathrm{m/s^2}$, which is due to unmodeled deviations of the shape of the concave mirror edge from an ideal one. We found that the sensitivity itself was $1\times 10^{-4}$, which is two orders of magnitude better than the above agreement.

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