Mathematical theory of non-relativistic matter and radiation

We consider a system of finitely many non-relativistic electrons bound in an atom or molecule which are coupled to the electromagnetic field via minimal coupling or the dipole approximation. Among a variety of results, we give sufficient conditions for the existence of a ground state (an eigenvalue at the bottom of the spectrum) and resonances (eigenvalues of a complex dilated Hamiltonian) of such a system. We give a brief of the proofs of these statements which will appear in full length in [3]. (orig.)Available from TIB Hannover: RR 1596(171) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman