Preprint
Oct 2026
Gap-Protected Heisenberg-Limited Squeezing with Locally Interacting Multi-Level Spins
We demonstrate a general mechanism to generate scalable, metrologically useful entanglement in the form of generalized spin squeezing in multi-level (qudit) spin systems with power-law interactions. We demonstrate this for spin-changing dynamics, extending the physics of spin-nematic squeezing known from spinor BECs to...
Sakshi Bahamnia, Sagar Chaudhary, Arman Duha et al.
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