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Physics --- Quantum theory --- Relativity (Physics) --- Superposition principle (Physics) --- Philosophy

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Coherence, entanglement, and interference arise from quantum superposition, the most distinctive and puzzling feature of quantum physics. Silverman, whose extensive experimental and theoretical work has helped elucidate these processes, presents a clear and engaging discussion of the role of quantum superposition in diverse quantum phenomena such as the wavelike nature of particle propagation, indistinguishability of identical particles, nonlocal interactions of correlated particles, topological effects of magnetic fields, and chiral asymmetry in nature. He also examines how macroscopic quantum coherence may be able to extricate physics from its most challenging quandary, the collapse of a massive degenerate star to a singularity in space in which the laws of physics break down. Explained by a physicist with a concern for clarity and experimental achievability, the extraordinary nature of quantum superposition will fascinate the reader not only for its apparent strangeness, but also for its comprehensibility.

spectrometrie --- Computer. Automation --- informatica --- Electronics --- elektronica --- Spectrometric and optical chemical analysis --- fysicochemie --- quantumfysica --- Quantum mechanics. Quantumfield theory --- Superposition principle (Physics) --- Quantum theory

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This open access book makes quantum computing more accessible than ever before. A fast-growing field at the intersection of physics and computer science, quantum computing promises to have revolutionary capabilities far surpassing “classical” computation. Getting a grip on the science behind the hype can be tough: at its heart lies quantum mechanics, whose enigmatic concepts can be imposing for the novice. This classroom-tested textbook uses simple language, minimal math, and plenty of examples to explain the three key principles behind quantum computers: superposition, quantum measurement, and entanglement. It then goes on to explain how this quantum world opens up a whole new paradigm of computing. The book bridges the gap between popular science articles and advanced textbooks by making key ideas accessible with just high school physics as a prerequisite. Each unit is broken down into sections labelled by difficulty level, allowing the course to be tailored to the student’s experience of math and abstract reasoning. Problem sets and simulation-based labs of various levels reinforce the concepts described in the text and give the reader hands-on experience running quantum programs. This book can thus be used at the high school level after the AP or IB exams, in an extracurricular club, or as an independent project resource to give students a taste of what quantum computing is really about. At the college level, it can be used as a supplementary text to enhance a variety of courses in science and computing, or as a self-study guide for students who want to get ahead. Additionally, readers in business, finance, or industry will find it a quick and useful primer on the science behind computing’s future.

Particle & high-energy physics --- Computer science --- Teaching of a specific subject --- Quantum Physics --- Quantum Computing --- Computer Science, general --- Science Education --- Quantum Information Technology, Spintronics --- Computer Science --- Spintronics --- Open Access --- Introduction to quantum computing --- quantum computing textbook --- quantum computing for high school students --- introduction to quantum cryptography --- quantum gates --- quantum algorithms --- quantum superposition --- what is a qubit? --- quantum key distribution --- Quantum physics (quantum mechanics & quantum field theory) --- Mathematical theory of computation --- Science: general issues

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Although scientific computing is very often associated with numeric computations, the use of computer algebra methods in scientific computing has obtained considerable attention in the last two decades. Computer algebra methods are especially suitable for parametric analysis of the key properties of systems arising in scientific computing. The expression-based computational answers generally provided by these methods are very appealing as they directly relate properties to parameters and speed up testing and tuning of mathematical models through all their possible behaviors. This book contains 8 original research articles dealing with a broad range of topics, ranging from algorithms, data structures, and implementation techniques for high-performance sparse multivariate polynomial arithmetic over the integers and rational numbers over methods for certifying the isolated zeros of polynomial systems to computer algebra problems in quantum computing.

superposition --- SU(2) --- pseudo-remainder --- interval methods --- sparse polynomials --- element order --- Henneberg-type minimal surface --- timelike axis --- combinatorial decompositions --- sparse data structures --- mutually unbiased bases --- invariant surfaces --- projective special unitary group --- Minkowski 4-space --- free resolutions --- Dini-type helicoidal hypersurface --- linearity --- integrability --- Galois rings --- minimum point --- entanglement --- degree --- pseudo-division --- computational algebra --- polynomial arithmetic --- projective special linear group --- normal form --- Galois fields --- Gauss map --- implicit equation --- number of elements of the same order --- Weierstrass representation --- Lotka–Volterra system --- isolated zeros --- polynomial modules --- over-determined polynomial system --- simple Kn-group --- sum of squares --- four-dimensional space

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Among the great ironies of quantum mechanics is not only that its conceptual foundations seem strange even to the physicists who use it, but that philosophers have largely ignored it. Here, Bernard d'Espagnat argues that quantum physics--by casting doubts on once hallowed concepts such as space, material objects, and causality-demands serious reconsideration of most of traditional philosophy. On Physics and Philosophy is an accessible, mathematics-free reflection on the philosophical meaning of the quantum revolution, by one of the world's leading authorities on the subject. D'Espagnat presents an objective account of the main guiding principles of contemporary physics-in particular, quantum mechanics-followed by a look at just what consequences these should imply for philosophical thinking. The author begins by describing recent discoveries in quantum physics such as nonseparability, and explicating the significance of contemporary developments such as decoherence. Then he proceeds to set various philosophical theories of knowledge--such as materialism, realism, Kantism, and neo-Kantism--against the conceptual problems quantum theory raises. His overall conclusion is that while the physical implications of quantum theory suggest that scientific knowledge will never truly describe mind-independent reality, the notion of such an ultimate reality--one we can never access directly or rationally and which he calls "veiled reality"--remains conceptually necessary nonetheless.

Physics --- Philosophy. --- Albert Einstein. --- Aristotelian physics. --- Atomic physics. --- Atomic theory. --- Atomism. --- Baruch Spinoza. --- Bell's theorem. --- Classical electromagnetism. --- Classical mechanics. --- Classical physics. --- Concept. --- Consciousness. --- Contemporary Physics. --- Explanation. --- Foundations of Physics. --- Hidden variable theory. --- Hypothesis. --- Interpretations of quantum mechanics. --- Materialism. --- Measurement in quantum mechanics. --- Measurement. --- Modern physics. --- Naturalism (philosophy). --- Objectivity (philosophy). --- Objectivity (science). --- Ontology. --- Phenomenon. --- Philosopher. --- Philosophical realism. --- Philosophical theory. --- Philosophy of mathematics. --- Philosophy of science. --- Physicist. --- Physics World. --- Prediction. --- Probability. --- Quantum cosmology. --- Quantum decoherence. --- Quantum electrodynamics. --- Quantum entanglement. --- Quantum field theory. --- Quantum gravity. --- Quantum logic. --- Quantum mechanics. --- Quantum superposition. --- Quantum system. --- Reality. --- Reason. --- Scalar (physics). --- Science. --- Scientific Data (journal). --- Scientific notation. --- Scientific realism. --- Scientific theory. --- Scientist. --- Solid-state physics. --- Special relativity. --- State of affairs (philosophy). --- Statistical ensemble (mathematical physics). --- The Evolution of Physics. --- The Philosopher. --- Theoretical physics. --- Theory. --- Thought. --- Wave function.