Article

Signal-Level Witnessing of SU(1,1) Pair Dynamics in Brain Proton Spin Ensembles

2025-11-11

Abstract excerpt

Non-compact symmetries such as SU(1,1) govern amplification and squeezing, yet have not been directly identified in macroscopic spin ensembles. Here we apply a symmetry-based analytical framework to previously published magnetic-resonance data acquired from proton spin ensembles in the living human brain. By reanalyzing the detected signal within this framework, we identify a non-compact SU(1,1) pair sector of the...

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Literature Corpus work: c92fb812-9c74-5f46-9b2d-ef66108a23cc
DOI: 10.1101/2025.11.10.687594

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