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arXiv · 2505.15280

Multisetting protocol for Bell correlated states detection with spin-$f$ systems

Arkadiusz Kobus·Xinwei Li·Mariusz Gajda·Li You·Emilia Witkowska
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Abstract

We propose a multisetting protocol for the detection of two-body Bell correlations, and apply it to spin-nematic squeezed states realized in $f$ pairs of SU(2) subsystems within spin-$f$ atomic Bose-Einstein condensates. Experimental data for $f=1$, alongside with numerical simulations using the truncated Wigner method for $f=1,\,2,\,3$, demonstrate the effectiveness of the proposed protocol. Our findings extend the reach of multisetting Bell tests in ultracold atomic system, paving the way for extended quantum information processing in high-spin ensemble platforms.

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Arkadiusz Kobus, Xinwei Li, Mariusz Gajda, Li You, Emilia Witkowska. 2025-05-21. Multisetting protocol for Bell correlated states detection with spin-$f$ systems. https://doi.org/10.1103/4lp8-c687

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