Quantum Information and Foundations

Quantum information has dramatically changed information science and technology looking at the quantum nature of the information carrier as a resource for building new information protocols designing radically new communication and computation algorithms and ultra-sensitive measurements in metrology with a wealth of applications. From a fundamental perspective this new discipline has led us to regard quantum theory itself as a special theory of information and has opened routes for exploring solutions to the tension with general relativity based for example on the holographic principle on non-causal variations of the theory or else on the powerful algorithm of the quantum cellular automaton which has revealed new routes for exploring quantum fields theory both as a new microscopic mechanism on the fundamental side and as a tool for efficient physical quantum simulations for practical purposes. In this golden age of foundations an astonishing number of new ideas frameworks and results spawned by the quantum information theory experience have revolutionized the way we think about the subject with a new research community emerging worldwide including scientists from computer science and mathematics.