# Operator analysis of contextuality-witness measurements for multimode-entangled single-neutron interferometry

@article{Lu2020OperatorAO, title={Operator analysis of contextuality-witness measurements for multimode-entangled single-neutron interferometry}, author={Shufan Lu and Abu Ashik Md. Irfan and Jiazhou Shen and Stephen J. Kuhn and William Michael Snow and David V. Baxter and Roger Pynn and Gerardo Guzman Ortiz}, journal={Physical Review A}, year={2020} }

We develop an operator-based description of two types of multimode-entangled single-neutron quantum optical devices: Wollaston prisms and radio-frequency spin flippers in inclined magnetic-field gradients. This treatment is similar to the approach used in quantum optics, and is convenient for the analysis of quantum contextuality measurements in certain types of neutron interferometers. We describe operationally the way multimode-entangled single-neutron states evolve in these devices, and…

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