A theoretical physicist and the director of the department of applied physics at the University of Geneva, Nicolas Gisin is a pioneer in the areas of cryptography, teleportation and quantum information. He was the first laureate of the John Stewart Prize and the cofounder of id Quantique, the world leader in quantic cryptography.

Quantum physics, which offers an explanation of the world on a minute scale, has fundamental implications that pose a serious challenge to ordinary logic. Particularly counterintuitive is the notion of entanglement, which has been explored for the past thirty years and posits a ubiquitous random event that is capable of manifesting itself simultaneously in several places in the universe.
This amazing ‘non-locality’ is neither a gratuitous abstraction nor a clever paradox: it has specific applications in cryptography, serving to protect financial information; it has enabled the demonstration of ‘quantum teleportation’, whose infinite possibilities even science-fiction writers can scarcely imagine.
The present concise book does not skirt the real logical difficulties of quantum physics. Ranging from ‘Bell’s Theory’ to experiments in quantum entanglement, the author guides the reader, step-by-step, to a solid understanding of one of the most fascinating areas of contemporary physics.

• Many readers are fascinated by the apparent logical paradoxes of quantum physics.
• Nicolas Gisin is an internationally renowned expert in quantum physics.