This volume contains a representative selection of the papers presented at the 10th European Workshop on Quantum Systems in Chemistry and Physics, held at Beit al Hikma, Carthage, Tunisia, from September 1st to 7th, 2005. The workshop continued the series which initiated at San Miniato, near Pisa, Italy, in 1996. The workshop's aim was to bring together chemists and physicists with a common interest in the quantum-mechanical many-body problem, in order to foster conceptual and methodological development for the understanding of the structure, dynamics and properties of atoms, molecules, and the solid state. This underpins many of the new emerging fields of science and technology: molecular engines, nanomaterials, responsive structural materials, synthetic bio-materials, drugs, and so on.

This volume contains a selection of papers presented at the 10th European Workshop on Quantum Systems in Chemistry and Physics, held in Tunisia, from September 1st to 7th, 2005. The workshop's aim was to bring together chemists and physicists with a common interest in the quantum-mechanical many-body problem. The volume offers unique insights into the fields of quantum chemical methods, molecular structure and spectroscopy, complexes and clusters.