Wang, Xue Ping Semiclassical approximation of the Heisenberg equation. (Approximation semi-classique de l’équation de Heisenberg.) (French) Zbl 0609.35077 Publ. Inst. Rech. Math. Rennes 3, 241-260 (1985). It is shown that the solution of Heisenberg’s equation of quantum mechanics can be approximated by pseudo-differential operators. Reviewer: G.Boillat MSC: 35Q99 Partial differential equations of mathematical physics and other areas of application 35S05 Pseudodifferential operators as generalizations of partial differential operators 81Q05 Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics Keywords:semiclassical approximation; Heisenberg’s equation; quantum mechanics; pseudo-differential operators PDFBibTeX XMLCite \textit{X. P. Wang}, Publ. Inst. Rech. Math. Rennes 3, 241--260 (1985; Zbl 0609.35077)