Probing quantum entanglement from magnetic-sublevels populations: beyond spin squeezing inequalities

Today I review this paper:

In this episode, we discuss a new approach to detecting quantum entanglement in many-body systems. The approach is based on Zeeman-sublevel population measurements, and it is more sensitive to entanglement than traditional methods. We explore how this approach can be used to study entanglement in spin-1 and spin-2 Bose-Einstein condensates, and we discuss the implications of the results for the development of new quantum technologies.

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