Quantum theory and measurement wheeler pdf
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- Quantum Theory Rebuilt From Simple Physical Principles
- Quantum theory and measurement Edited by J. A. Wheeler and W. H. Zurek. Pp. 812
- Quantum theory and measurement
Quantum Theory Rebuilt From Simple Physical Principles
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Nature , — Download citation. Received : 03 December Accepted : 28 March Issue Date : 23 May Frontiers in Physics Foundations of Physics Physical Review A By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate. Advanced search. Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.
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Quantum theory and measurement Edited by J. A. Wheeler and W. H. Zurek. Pp. 812
Quantum theory and measurement
An interpretation of quantum mechanics is an attempt to explain how the mathematical theory of quantum mechanics "corresponds" to reality. Although quantum mechanics has held up to rigorous and extremely precise tests in an extraordinarily broad range of experiments not one prediction from quantum mechanics has been found to be contradicted by experiments , there exist a number of contending schools of thought over their interpretation. These views on interpretation differ on such fundamental questions as whether quantum mechanics is deterministic or stochastic , which elements of quantum mechanics can be considered real, and what is the nature of measurement , among other matters. Despite nearly a century of debate and experiment, no consensus has been reached among physicists and philosophers of physics concerning which interpretation best "represents" reality. The definition of quantum theorists' terms, such as wave function and matrix mechanics , progressed through many stages.
Selected Topics in Applications of Quantum Mechanics. To begin with, let us recall that none of the words of the previous list is included in classical theories. Classical Mechanics, Electromagnetism, Statistical Physics and other classical theories speak about what happens, not about what is observed or measured ; they assume the behavior of apparatuses or measuring devices ruled by the same laws which govern processes where man-made objects are absent; they treat on the same footing microscopic and macroscopic objects; and they offer no room for notions such as environment or information. The situation is radically different in quantum mechanics. Orthodox Quantum Mechanics, the theory formulated by J. In addition to these issues, present since the quantum mechanical formalism was established, in the following years other problems were unveiled and the Projection Postulate became the principal target of criticisms.
Quantum mechanics is generally regarded as the physical theory that is our best candidate for a fundamental and universal description of the physical world.