In the last few decades quantum theory has experienced an extensive revival owing to the rapid development of quantum information and quantum technologies. Based on a series of courses taught by the authors, the book takes the reader on a journey from the beginnings of quantum theory in the early twentieth century to the realm of quantum-information processing in the twenty-first. The central aim of this textbook, therefore, is to offer a detailed introduction to quantum theory that covers both physical and information-theoretic aspects, with a particular focus on the concept of entanglement and its characteristics, variants, and applications. Suitable for undergraduate students in physics and related subjects who encounter quantum mechanics for the first time, this book also serves as a resource for graduate students who want to engage with more advanced topics, offering a collection of derivations, proofs, technical methods, and references for graduate students and more experienced readers engaged with teaching and active research. The book is divided into three parts: Part I - Quantum Mechanics, Part II - Entanglement and Non-Locality, and Part III - Advanced Topics in Modern Quantum Physics. Part I provides a modern view on quantum mechanics, a central topic of theoretical physics. Part II is dedicated to the foundations of quantum mechanics and entanglement: starting with density operators, hidden-variable theories, the Einstein-Podolsky-Rosen Paradox, and Bell Inequalities, but also touching upon philosophical questions, followed by a deeper study of entanglement-based quantum communication protocols like teleportation, before giving a detailed exposition of entanglement theory, including tools for the detection and quantification of entanglement. Part III is intended as a collection of standalone chapters to supplement the contents of Parts I and II, covering more advanced topics such as classical and quantum entropies, quantum operations and measurements, decoherence, quantum metrology and quantum optics, and entanglement in particle physics.
The study of music in commercials is well-suited for exploring the persuasive impact that music has beyond the ability to entertain, edify, and purify its audience. This book focuses on music in commercials from an interpretive text analytical perspective, answering hitherto neglected questions: What characterizes music in commercials compared to other commercial music and other music on TV? How does music in commercials relate to music ‘outside’ the universe of commercials? How and what can music in commercials signify? Author Nicolai Graakjær sets a new benchmark for the international scholarly study of music on television and its pervading influence on consumer choice.
Aimed at university students, as well as academic and industry researchers, this textbook is an introduction to quantum theory, covering the development of the field from the early stages of quantum mechanics to modern quantum information, with a focus on entanglement theory.
A more ethical economic system is now possible, one that rectifies the crisis spots of our current downturn while balancing the injustices of extreme poverty and wealth. Adam Arvidsson and Nicolai Peitersen, a scholar and an entrepreneur, outline the shape such an economy might take, identifying its origins in innovations already existent in our production, valuation, and distribution systems. Much like nineteenth-century entrepreneurs, philosophers, bankers, artisans, and social organizers who planned a course for modern capitalism that was more economically efficient and ethically desirable, we now have a chance to construct new instruments, institutions, and infrastructure to reverse the trajectory of a quickly deteriorating economic environment. Considering a multitude of emerging phenomena, Arvidsson and Peitersen show wealth creation can be the result of a new kind of social production, and the motivation of continuous capital accumulation can exist in tandem with a new desire to maximize our social impact. Arvidsson and Peitersen argue that financial markets could become a central arena in which diverse ethical concerns are integrated into tangible economic valuations. They suggest that such a common standard has already emerged and that this process is linked to the spread of social media, making it possible to capture the sentiment of value to most people. They ultimately recommend how to build upon these developments to initiate a radical democratization of economic systems and the value decisions they generate.
The conflict in Ukraine has deep domestic roots. A third of the population, primarily in the East and South, regards its own Russian cultural identity as entirely compatible with a Ukrainian civic identity. The state’s reluctance to recognize this ethnos as a legitimate part of the modern Ukrainian nation, has created a tragic cycle that entangles Ukrainian politics. The Tragedy of Ukraine argues that in order to untangle the conflict within the Ukraine, it must be addressed on an emotional, as well as institutional level. It draws on Richard Ned Lebow’s ‘tragic vision of politics’ and on classical Greek tragedy to assist in understanding the persistence of this conflict. Classical Greek tragedy once served as a mechanism in Athenian society to heal deep social trauma and create more just institutions. The Tragedy of Ukraine reflects on the ways in which ancient Greek tragedy can help us rethink civic conflict and polarization, as well as model ways of healing deep social divisions.
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