H A Cerdeira - Böcker

It has become clear in recent years that finding real chaotic behaviour in the sense of phenomena that persist in time does not exist for quantum systems. But still the question persists as what are the quantum manifestations of classical chaos, or rather how does a quantum system behave whose classical counterpart is chaotic. These proceedings discuss different contemporary aspects of this problem, experimental as well as theoretical.

Novel phenomena in submicron semiconductor devices and small Josephson junctions emphasize the need to understand quantum mechanical coherence and tunneling in mesoscopic and macroscopic systems. These proceedings review the recent experimental and theoretical progress and discuss new concepts, techniques and results.

This is a collection of pedagogical lectures and research papers that were presented during a combined course/conference program held at the International Centre for Theoretical Physics in Trieste in the summer of 1991. The lectures begin from an elementary level and were intended to bring student participants to the point where they could appreciate the research conference that came at the end of program.