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"...little Odyssey, a little Ulysses; the story of one day's journey, skillfully playing in tandem with another, life-long journey."
This thesis presents an experimental study of quantum memory based on cold atomic ensembles and discusses photonic entanglement. It mainly focuses on experimental research on storing orbital angular momentum, and introduces readers to methods for storing a single photon carried by an image or an entanglement of spatial modes. The thesis also discusses the storage of photonic entanglement using the Raman scheme as a step toward implementing high-bandwidth quantum memory. The storage of photonic entanglement is central to achieving long-distance quantum communication based on quantum repeaters and scalable linear optical quantum computation. Addressing this key issue, the findings presented in the thesis are very promising with regard to future high-speed and high-capacity quantum communications.
This book integrates science with values and meaning by making the simplest possible assumption about the connection between physical structure and conscious experience. The implications extend to the foundations of mathematics and physics suggesting that Einstein's intuition near the end of his life was correct that continuous structures do not exist. The book argues that spiritual instincts have evolved to connect us with the creative aspects of biological evolution which are crucial to long term survival. If the evolution of consciousness is allowed to expand without limit, then whatever ecstatic wondrous experience any being ever experiences is the merest hint of a shadow of what can be and that will always be the case. This follows from Gdel's Incompleteness Theorem and the assumptions of this book.
"Join me in this book as I stumble my way across das Mutterland to learn all I can about my maternal and paternal surnames, Karle & Kaiser, and my other forty-five ancestral surnames (Adolf, Andreas, Arp, Arnst, Becker, Bopp, Burbach, Dagenheim, Foht, Freund, Geringer, Grun, Hart, Heiland, Hermann, Hess, Heylmann, Hieronymus, Horn, Ikstadt, Kohler, Kramer, Lieders, Maurer, Michel, Neumann, Nicolausen, Nillmayer, Popp, Roth, Rudolph, Schaeffer, Scherer, Schiller, Schmiedt, Schneider, Schutz, Simon, Steitz, Trieber, Trippel, Vogt, Werner, Will, Zeichmann). Read how the Black Death, and the 30 Years and 7 Years Wars plagued them. Learn of the Catherine the Great "Scam" and its effect on the Volga Germans. Share their fear as the Russians close in. Travel with them to their new homeland in the Americas." Traces the origins of Karle & Kaiser from about 50,000BC. Covers DNA tracking, pre-German history, religion, the Volga life and villages, and escape to the Americas. Over 560 pages,200 pictures,80 maps.
Remarkable recent developments in the field of quantum communications and quantum information processing include the achievement of quantum teleportation, quantum communication channels based on entangled states, and the discovery of quantum computing algorithms. The present book addresses the physical foundations of the subject, as well as the technological problems, discussing such aspects as photonics, quantum imaging, engineered entanglement in atomic and other physical systems, Bose-Einstein condensation, and decoherence. Indispensable reading for graduates and Ph.D. students in departments of physics, electrical and electronic engineering, mathematics, and computer science seeking both an orientation as well as advanced training in the field.
A physicist's efforts to understand the enigma that is quantum mechanics. Quantum mechanics is one of the glories of our age. The theory lies at the heart of modern society. Quantum mechanics is one of our most valuable forecasters—a “great predictor.” It has immeasurably altered our conception of the natural world. Its philosophical implications are earthshaking. But quantum mechanics steadfastly refuses to speak of many things; it deals in probabilities rather than giving explicit descriptions. It never explains. Einstein, one of its creators, considered the theory incomplete. Even now, many years after the creation of quantum mechanics, physicists continue to argue about it. Astroph...
The book analyses how India’s rise to the status of an emerging power has affected New Delhi’s Africa policy, after sketching the historical evolution and normative underpinnings of Indo-African relations, and what challenges it has brought for New Delhi’s engagement with the continent. India and Africa share a history dating back millennia. Today, India is one of Africa’s biggest trading partner countries, second only to China. The country regularly extends lines of credit worth billions to African nations, and its pharmaceutical producers dominate many African markets; almost one-fifth of India’s oil imports and more than one-quarter of its natural gas imports come from the conti...
In The Entangled God, Kirk Wegter-McNelly addresses the age-old theological question of how God is present to the world by constructing a novel, scientifically informed account of the God–world relation. Drawing on recent scientific and philosophical work in "quantum entanglement," Wegter-McNelly develops the metaphor of "divine entanglement" to ground the relationality and freedom of physical process in the power of God’s relational being. The Entangled God makes a three-fold contribution to contemporary theological and religious discourse. First, it calls attention to the convergence of recent theology around the idea of "relationality." Second, it introduces theological and religious readers to the fascinating story of quantum entanglement. Third, it offers a robust "plerotic" alternative to kenotic accounts of God’s suffering presence in the world. Above all, this book takes us beyond the view of theology and science as adversaries and demonstrates the value of constructively relating these two important areas of intellectual investigation.
From the very beginning it was realised that quantum physics involves radically new interpretative and epistemological consequences. While hitherto there has been no satisfactory philosophical analysis of these consequences, recent years have witnessed the accomplishment of many experiments to test the foundations of quantum physics, opening up vistas to a completely novel technology: quantum technology. The contributions in the present volume review the interpretative situation, analyze recent fundamental experiments, and discuss the implications of possible future technological applications. Readership: Analytic philosophers (logical empiricists), scientists (especially physicists), historians of logic, mathematics and physics, philosophers of science, and advanced students and researchers in these fields. Can be used for seminars on theoretical and experimental physics and philosophy of science, and as supplementary reading at advanced undergraduate and graduate levels.