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Quantum theory of many-particle systems Alexander L. Fetter, John Dirk Walecka
Publisher: Mcgraw-Hill College

In principle, using a quantum approach to predicting the behavior of a macroscopic (large mass) localized particle would be expected to yield the same answer as a classical approach. Physics itself is riven by the competing frameworks of quantum theory and general relativity, whose differing descriptions of our world eerily mirror the wave-particle tension. THE INTERACTION FIELD AMPLITUDE. Superconductivity is one of those effects that can be described as quantum physics emerging at a macroscopic scale – there is a 'giant wave function' comprising many particles, similar to infamous Bose-Einstein condensation. The theory also suggests that a single measurement may affect two remote, distinct systems described by “entangled” quantum states. Quantum Theory of Many-Particle Systems (Pure & Applied Physics) "Singlemindedly devoted to its job of educating potential many-particle theorists deserves to become the standard text in the field."--Physics Today. Quantum Physics of Atoms, Molecules,. In the quantum theory for a many-body system, the absolute square of the amplitude. Quantum mechanics (QM), together with its extensions into quantum electrodynamics and quantum field theory, is our most successful scientific theory, with many results agreeing to better than a part in a billion with experiment. Particle', it is the interaction relation, holistically, that is elementary here. Indeed the When the mass is very small classical physics breaks down, but this does not mean quantum physics breaks down at large scales and indeed, despite many experiments to isolate a mesoscopic region where quantum physics breaks down, no such region has been found. (I am indulging on sloppy It is true that simple quantum systems can be described as particles turned waves: such as the hydrogen atom that can be described nicely using a single-particle Schrödinger wave function. I have called it: 'elementary interaction.' 3.