calculus - How to derive a Lorentz covariant, generic solution for the system in a Klein-Gordon field. - Mathematics Stack Exchange

Below, I am reading through how to quantise a complex scalar field, beginning with an example of the Klein-Gordon field. After arriving to the generic solution to the system corresponding to equat

Why do we use quantum field theory instead of relativistic quantum

AdS - CFT, PDF, Quantum Field Theory

electromagnetism - Gauge Invariance for the Klein Gordon Equation

Relationship among the Lorentz covariant Schrödinger equation and

differential geometry - Problem in Metric Tensors - Physics Stack

field theory - Tensor Question (Klein–Gordon equation) - Physics

Representation theory - Wikipedia

Journal of Combinatorics, Information & System Sciences A

PDF) Notes on the ambient approach to boundary values of AdS gauge

Algebraic Conformal Quantum Field Theory in Perspective