Dyson 1949 (Phys. Rev. 75:486) expressed the time-evolution operator in the interaction picture as an infinite time-ordered exponential. Introducing the interaction-picture state |ψ_I(t)⟩ = e^{iH_0 t/ℏ}|ψ_S(t)⟩, the Schrödinger equation…
Dyson 1949 (Phys. Rev. 75:486) expressed the time-evolution operator in the interaction picture as an infinite time-ordered exponential. Introducing the interaction-picture state |ψ_I(t)⟩ = e^{iH_0 t/ℏ}|ψ_S(t)⟩, the Schrödinger equation…