Wineland: ξ²_CSS = 1, ξ²_GHZ = 1/N; Δφ_GHZ = 1/N (Heisenberg limit)

Layer 1 — Physicsin the precision-measurement-physics subtree

Sympy-exact symbolic witness of Wineland spin-squeezing parameters and the associated phase-sensitivity scalings. Setup: N positive sympy symbol (atom number), ξ positive squeezing factor. Coherent-spin-state (CSS) value: ξ²_CSS = 1;…

Related concepts

Wineland spin-squeezing parameter ξ² = N·(ΔJ_⊥)² / ⟨J⟩²; Heisenberg scaling

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