Equation of Motion for the P Representation
B. Crosignani, U. Ganiel, S. Solimeno, Paolo Di Porto · Physical Review A · 1971
A new equation of motion, which describes the time evolution of the $P$ representation in the Schr\"odinger picture, is derived. The equation applies to a very general class of Hamiltonians, and thus should be useful in many problems. As a demonstration of the usefulness of this equation, some known results are recovered by its direct application.