01-176 Matthias M ck

Construction of Metastable States in Quantum Electrodynamics (619K, PostScript) May 11, 01

Abstract , Paper (src), View paper (auto. generated ps), Index of related papers

Abstract. In this paper, we construct metastable states of atoms interacting with the quantized radiation field, which emerge from the excited bound states of the non-interacting system, and we prove that these states obey a quasi-exponential time-decay law. The estimate of the error term improves a corresponding result in [BachFr hlichSigal 1998]. This yields an enlargement of the time period during which {\em Fermi's Golden Rule} can be observed. A novel feature of our approach is the dependence of the complex dilatation parameter on the perturbation parameter (coupling constant).

Files: 01-176.src( 01-176.keywords , mueck_mar01.ps )