Quantum Structures and the Nature of Reality

This collection of papers was written for an interdisciplinary audience on the quantum structure research at the International Quantum Structures Association. The advent of quantum mechanics has changed the scientific worldview in a fundamental way. The paradoxical aspects of quantum mechanics find their origin in the standard views on quantum mechanics, most of all the wave-particle duality picture. Contrary to relativity theory, where the meaning of its revolutionary ideas was linked from the start with deep structural changes in the geometrical nature of our world, the deep structural changes about the nature of our reality that are indicated by quantum mechanics cannot be traced within the standard formulation. The study of the structure of quantum theory, its logical content, its axiomatic foundation, has been motivated primarily by the search for their structural changes.