Srednicki — Quantum Field Theory · Problem 55.1

Canonical Quantization of Scalar Fields — Mark Srednicki

Physics — QFT · photon-commutation-relations

Problem

Use eqs. (55.13--55.20) and

[A_i, A_j] = [\Pi_i, \Pi_j] = 0

(at equal times) to verify eqs. (55.21--55.23).