Explicit solution of the continuous Baker-Campbell-Hausdorff problem and a new expression for the phase operator: I. Bialynicki-Birula, B. Mielnik, and J. Plebanski. Institute of Theoretical Physics, Warsaw University, Warsaw, Poland

Explicit solution of the continuous Bake

Explicit solution of the continuous Baker-Campbell-Hausdorff problem and a new expression for the phase operator

✍ I Bialynicki-Birula; B Mielnik; J Plebański 📂 Article 📅 1969 🏛 Elsevier Science 🌐 English ⚖ 555 KB

An explicit formula for an arbitrary function of the evolution operator is derived. With its use, the continuous analog of the Baker-Campbell-Hausdorff problem is solved. The application of this result to the quantum theory of scattering leads to a new closed expression for the phase shifts in every