Strong scattering and parallel guiding of ultracold neutrons

2020/09/16 by ‪Zhehui Wang, Wang, Zhehui, M. Demarteau +5
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #Instrumentation and Detectors (physics.ins-det) #Nuclear Physics and Applications #Quantum Physics (quant-ph) #Quantum, superfluid, helium dynamics

paper · pdf · doi:10.48550/arxiv.2009.07900

openalex publication_date 2020/09/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

For ultracold neutrons with a kinetic energy below 10 neV, strong scattering, characterized by 2πl_c / λ≤ 1, can be obtained in metamaterials of C and ⁷Li. Here l_c and λ are the coherent scattering mean free path and the neutron wavelength, respectively. UCN interferometry and high-resolution spectroscopy (nano-electronvolt to pico-electronvolt resolution) in parallel waveguide arrays of neutronic metamaterials are given as examples of new experimental possibilities.

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