1. F B Mathematik MA 7-2, Technische Universit?t, Berlin, D-10623, Berlin, Germany 2. Theoretische Physik, ETH-H?nggerberg, CH-8093, Zürich, Switzerland 3. Department of Mathematics, University of Toronto, M5S 1A1, Toronto, Canada
Abstract:
In this paper we present an informal review of our recent work whose goal is to develop a mathematical theory of the physical
phenomenon of emission and absorption of radiation by systems of nonrelativistic matter such as atoms and molecules.
Dedicated to Larry Horwitz on the occasion of his 65th birthday.
Research supported by DFS 288 and by NSF Phy 90-10433A02.
Research supported by SNF.
Research supported by NSERC Grant NA 7901.