This book surveys the physics of small clusters of particles undergoing oscillations and vibrations. These oscillations occur in nuclear physics and the physics and chemistry of atomic clusters. First, the authors survey experimental information on collective vibrations in atoms, metal clusters and nuclei, then they develop theoretical tools to understand these findings. Finally, they discuss important vibrational modes observed in the different systems and mechanisms for the damping of vibrational modes and the effects of excitation energy on the modes.

This book surveys the physics of small clusters of particles undergoing oscillations and vibrations. These oscillations occur in nuclear physics and the physics and chemistry of atomic clusters. First, the authors survey experimental information on collective vibrations in atoms, metal clusters and nuclei, then they develop theoretical tools to understand these findings. Finally, they discuss important vibrational modes observed in the different systems and mechanisms for the damping of vibrational modes and the effects of excitation energy on the modes.

Quantum mechanics is the set of laws of physics which, to the best of our knowledge, provides a complete account of the microworld. One of its chap ters, quantum electrodynamics (QED), is able to account for the quantal phenomena of relevance to daily life (electricity, light, liquids and solids, etc.) with great accuracy. The language of QED, field theory, has proved to be uni versal providing the theoretical basis to describe the behaviour of many-body systems. In particular finite many-body systems (FMBS) like atomic nuclei, metal clusters, fullerenes, atomic wires, etc. That is, systems...