Gregg Jaeger Knihy

Focusing on quantum information processing and communication, this book serves as a comprehensive resource for practitioners and students in quantum physics and information science. It offers essential information, including definitions, protocols, and algorithms, facilitating a deeper understanding of the field.

Entanglement was once seen as a mere curiosity within thought experiments, but the violation of Bell's inequality over 25 years ago revealed its significance in the microphysical world. This understanding has shifted perspectives, highlighting that non-local properties of quantum states are integral to modern technology. The connection between information theory and the foundations of mechanics is increasingly acknowledged by physicists and philosophers, particularly in the context of quantum information and entanglement. The relationship was hinted at by Max Born and Wolfgang Pauli, who proposed that pure quantum states provide probabilities for quantum system behavior through the Born rule. Leo Szilard’s analysis of Maxwell’s demon further clarified the interplay between mechanics and information. In this exploration, I aim to critically examine both entanglement and quantum information, as well as their impact on the interpretation of quantum theory. This assessment seeks to illuminate how these concepts shape our understanding of the quantum realm and its implications for technology and philosophy.

The book captures the dynamic discussions from the AQT conference, highlighting a spectrum of opinions on quantum mechanics' foundations. It contrasts the orthodox Copenhagen interpretation, which dismisses realism and causality, with realist perspectives reminiscent of Einstein's views. The diverse debates reflect ongoing tensions and developments within the field, showcasing the rich dialogue among physicists regarding the future of quantum mechanics.

This book describes the experimental and theoretical bases for the development of specifically quantum-mechanical approaches to metrology, imaging, and communication. In particular, it presents novel techniques developed over the last two decades and explicates them both theoretically and by reference to experiments which demonstrate their principles in practice. The particular techniques explored include two-photon interferometry, two-photon optical aberration and dispersion cancellation, lithography, microscopy, and cryptography.

This monograph identifies the essential characteristics of the objects described by current quantum theory and considers their relationship to space-time. In the process, it explicates the senses in which quantum objects may be consistently considered to have parts of which they may be composed or into which they may be decomposed. The book also demonstrates the degree to which reduction is possible in quantum mechanics, showing it to be related to the objective indefiniteness of quantum properties and the strong non-local correlations that can occur between the physical quantities of quantum subsystems. Careful attention is paid to the relationships among such property correlations, physical causation, probability, and symmetry in quantum theory. In this way, the text identifies and clarifies the conceptual grounds underlying the unique nature of many quantum phenomena.