Measurement of Neutron Whispering Gallery States Using a Pulsed Neutron Beam
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arXiv
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866909583910371328 |
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| author | Ichikawa, Go Mishima, Kenji |
| author_facet | Ichikawa, Go Mishima, Kenji |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_18936 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Measurement of Neutron Whispering Gallery States Using a Pulsed Neutron Beam Ichikawa, Go Mishima, Kenji High Energy Physics - Experiment Instrumentation and Detectors Quantum Physics 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. |
| title | Measurement of Neutron Whispering Gallery States Using a Pulsed Neutron Beam |
| topic | High Energy Physics - Experiment Instrumentation and Detectors Quantum Physics |
| url | https://arxiv.org/abs/2502.18936 |