Srednicki — Quantum Field Theory · Problem 8.3

Canonical Quantization of Scalar Fields — Mark Srednicki

Physics — QFT · path-integral-free-field-theory

Problem

Starting with eq. (8.13), verify eq. (8.12). Note that the time derivatives in the Klein-Gordon wave operator can act on either the field (which obeys the Klein-Gordon equation) or the time-ordering step functions.

Related theory

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