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arXiv · 1703.01841

Ubiquitous non-local entanglement with Majorana bound states

Alessandro Romito·Yuval Gefen
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Abstract

Entanglement in quantum mechanics contradicts local realism, and is a manifestation of quantum non-locality. Its presence can be detected through the violation of Bell, or CHSH inequalities. Paradigmatic quantum systems provide examples of both, non-entangled and entangled states. Here we consider a minimal complexity setup consisting of 6 Majorana bound states. We find that any allowed state in the degenerate Majorana space is non-locally entangled. We show how to measure (with available techniques) the CHSH-violating correlations, using either intermediate strength or weak measurement protocols.

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Alessandro Romito, Yuval Gefen. 2017-10-24. Ubiquitous non-local entanglement with Majorana bound states. https://doi.org/10.1103/physrevlett.119.157702

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