Quantum information approach to the implementation of a neutron cavity

Nahman-Lévesque, O.; Sarenac, D.; Lailey, O.; Cory, D. G.; Huber, M. G.; Pushin, D. A.

doi:10.1088/1367-2630/acdb93

Title: Quantum information approach to the implementation of a neutron cavity

Journal Article · 31 July 2023 · New Journal of Physics

DOI: https://doi.org/10.1088/1367-2630/acdb93 · OSTI ID:1992963

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; Cory, D. G.;

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Abstract Using the quantum information model of dynamical diffraction we consider a neutron cavity composed of two perfect crystal silicon blades capable of containing the neutron wavefunction. We show that the internal confinement of the neutrons through Bragg diffraction can be modelled by a quantum random walk. Furthermore, we introduce a toolbox for modelling crystal imperfections such as surface roughness and defects. Good agreement is found between the simulation and the experimental implementation, where leakage beams are present, modelling of which is impractical with the conventional theory of dynamical diffraction. Analysis of the standing neutron waves is presented in regards to the crystal geometry and parameters; and the conditions required for well-defined bounces are derived. The presented results enable new approaches to studying the setups utilizing neutron confinement, such as the experiments to measure neutron magnetic and electric dipole moments.

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Sponsoring Organization:: USDOE

OSTI ID:: 1992963

Journal Information:: New Journal of Physics, Journal Name: New Journal of Physics Journal Issue: 7 Vol. 25; ISSN 1367-2630

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United Kingdom

Language:: English

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