An inverse scattering problem for the Klein-Gordon equation with a classical source in quantum field theory

Hironobu Sasaki, Akito Suzuki

An inverse scattering problem for a quantized scalar field $\mathbf{\varphi }$ obeying a linear Klein-Gordon equation $(\square + m^2 + V) {\bm ϕ} = J \mbox{in $\mathbb{R} \times \mathbb{R}^…