Elementary Aspects of the Quantum-Mechanical Many-Body Problem

Walter Greiner

Walter Greiner

Ricardo A. Broglia

Göran Lindblad

Does quantum mechanics have unsolved foundational problems? Is there a dividing line between the quantum and classical descriptions of the world? In this paper, I give an elementary introduction to the mathematical aspects of quantum and classical models which have prompted such questions.

R. M. Cavalcanti, C. A. A. de Carvalho

We present a detailed discussion of some features of quantum mechanical metastability. We analyze the nature of decaying (quasistationary) states and the regime of validity of the exponencial law, as well as decays at finite temperature. We resort to very simple systems and elementary techniques to emphasize subtle aspects of the problem.

Fabrizio Tafuri, C. A. Perroni, G. De Filippis