Heisenberg position–momentum uncertainty (Δx Δp ≥ ħ/2)

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Δx Δp ≥ ħ/2

What each symbol means

SymbolWhat it stands for
ΔpMomentum uncertainty
ΔxPosition uncertainty
\hbarh/(2π)

When to use this

Canonical uncertainty principle (Gaussian minimum often quoted as ℏ/2).