Substituting the above into Equation (2) we get the Schrödinger uncertainty relation σ σ A σ σ B ≥ ≥ ( 1 2 ⟨ ⟨ { A ^ ^ , B ^ ^ } ⟩ ⟩ − − ⟨ ⟨ A ^ ^ ⟩ ⟩ ⟨ ⟨ B ^ ^ ⟩ ⟩ ) 2 + ( 1 2 i ⟨ ⟨ [ A ^ ^ , B ^ ^ ] ⟩ ⟩ ) 2 .