Prescription [φ(x,t), π(y,t)] = iℏ δ³(x−y), [π(x,t), π(y,t)] = [φ(x,t), φ(y,t)] = 0. Upgrades classical fields to operator-valued distributions; entrypoint to QFT.
Prescription [φ(x,t), π(y,t)] = iℏ δ³(x−y), [π(x,t), π(y,t)] = [φ(x,t), φ(y,t)] = 0. Upgrades classical fields to operator-valued distributions; entrypoint to QFT.