# A matter wave Rarity-Tapster interferometer to demonstrate non-locality

@inproceedings{Thomas2022AMW, title={A matter wave Rarity-Tapster interferometer to demonstrate non-locality}, author={K. F. Thomas and Bryce M. Henson and Yu Qing Wang and Robert J. Lewis-Swan and K. V. Kheruntsyan and Sean S. Hodgman and Andrew G. Truscott}, year={2022} }

We present an experimentally viable approach to demonstrating quantum non-locality in a matter wave system via a Rarity-Tapster interferometer using two s -wave scattering halos generated by colliding helium Bose-Einstein condensates. The theoretical basis for this method is discussed, and its suitability is experimentally quantiﬁed. As a proof of concept, we demonstrate an interferometric visibility of V = 0 . 42(9), corresponding to a maximum CSHS-Bell parameter of S = 1 . 1(1), for the…

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