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Quantum-information approach to dynamical diffraction theory

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PhysRevA.94.062311.pdf (520.11 KB)

Date

2016-12-08

Authors

Nsofini, Joachim
Ghofrani, Kamyar
Sarenac, Dusan
Cory, David G.
Pushin, Dimitry A.

Journal Title

Journal ISSN

Volume Title

Publisher

American Physical Society

Abstract

We present a simplified model for dynamical diffraction of particles through a periodic thick perfect crystal based on repeated application of a coherent beam-splitting unitary at coarse-grained lattice sites. By demanding translational invariance and a computationally tractable number of sites in the coarse graining, we show how this approach reproduces many results typical of dynamical diffraction theory and experiments. This approach has the benefit of being applicable in the thick, thin, and intermediate crystal regimes. The method is applied to a three-blade neutron interferometer to predict the output beam profiles, interference patterns, and contrast variation.

Description

© 2016 American Physical Society, https://dx.doi.org/10.1103/physreva.94.062311

Keywords

perfect crystals, neutron-diffraction, x-rays, reflection, walks

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Citation

URI

https://dx.doi.org/10.1103/physreva.94.062311
 http://hdl.handle.net/10012/13804

Collections

Waterloo Research
Physics and Astronomy