**Chapter 8 161**

Quantum Information Science in High Energy Physics *by Oliver Keith Baker*

Preface

Quantum information is one of the most active and rapidly advancing areas of physics. Developments in this field have a dual character. On one hand, exploring the information transmission and processing capabilities allowed by the basic laws of quantum physics may lead to new and revolutionary quantum information technologies. On the other hand, understanding the information-theoretical aspects of physical systems and processes contributes to a deeper understanding of physics itself. Due to these complementary facets, quantum information constitutes a rich and fertile field attracting a wide spectrum of researchers, ranging from engineering-motivated technologists interested in practical innovations to philosophically inclined theoreticians interested in foundational issues. The chapters in this book constitute a stimulating sample of the different aspects of quantum information science. Contributions by experts discuss a variety of topics, including investigations dealing with the implementation of quantum technologies and works exploring fundamental problems at the very

The introductory chapter emphasizes some features from a historical perspective on the physics of information and quantum mechanics. After this discussion, several additional chapters cover topics related to recent advances in the modeling

In Chapter 2, Prof. 't Hooft proposes a new theoretical explanation for quantum

In Chapter 3, Prof. Majumdar formulates nested multilevel entanglement and

In Chapter 4, Prof. Gupta presents some foundational issues in quantum information

In Chapter 5, Prof. Lacalle addresses the challenge of making quantum computing a reality, discusses the control of quantum errors, and presents a road map to quantum

In Chapter 6, Profs. Duplij and Vogl propose a concept of quantum computing that incorporates a kind of uncertainty, the vagueness, introducing obscure qudits, which are simultaneously characterized by a quantum probability and a membership

In Chapter 7, Prof. Raghavan pays attention to a looming threat over current methods of data encryption through advances in quantum computation; due to this, physically assured privacy is provably secure only in theory and not in practice. The author includes a brief overview (not a review) of device independence and the conceptual

frontiers of contemporary physics.

discusses it in Matryoshka states.

computing.

function.

and practical difficulties.

and application of quantum information science.

physics based on classical and deterministic models.

science, dividing his discussion into three parts.
