Bilinear antisymmetric operation {f,g} = Σ (∂f/∂q_i ∂g/∂p_i − ∂f/∂p_i ∂g/∂q_i) on phase-space functions. Encodes symplectic structure and classical limit of commutators.
Bilinear antisymmetric operation {f,g} = Σ (∂f/∂q_i ∂g/∂p_i − ∂f/∂p_i ∂g/∂q_i) on phase-space functions. Encodes symplectic structure and classical limit of commutators.