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Quantum theory --- Path integrals --- Théorie quantique. --- Intégrales de chemin.

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'Semiclassical Physics' emphasizes the close connection between the shorter classical periodic orbits, and the partially resolved quantum fluctuations in the level density and response of an autonomous finite quantum system. Particular care is taken to present a detailed derivation of Gutzwiller's trace formula, and its extensions to continuous symmetries, zeta function techniques, and diffractive orbits. Simple model examples are used to illustrate the formalism. The self-consistent mean-field approach to the many-body problem is used, and the extended Thomas-Fermi model posited for the average properties of finite fermion systems. Strutinsky's energy theorem is exploited to bring out the quantum effects in interacting systems. Experimental manifestations of quantum shell structure, and their understanding in terms of a few classical orbits, are illustrated in atomic nuclei, metal clusters, and mesoscopic devices. Chapters one, two, and eight are meant for the general reader interested in semiclassical physics and a survey of relevant experiments. The other five chapters give a detailed, but elementary, exposition of the theory aimed at the second-year graduate student level.

Quantum mechanics. Quantumfield theory --- Quantum theory. --- Mechanics. --- Path integrals. --- Thomas-Fermi theory. --- Théorie quantique --- Mécanique --- Intégrales de chemin --- Théorie quantique --- Mécanique --- Intégrales de chemin

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Stochastic processes --- Mathematical physics --- Quantum mechanics. Quantumfield theory --- Path integrals. --- Intégrales de chemin --- 530.1 --- Basic principles of physics --- 530.1 Basic principles of physics --- Statistical physics --- Intégrales de chemin

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Quantum mechanics. Quantumfield theory --- Mathematical physics --- Path integrals --- Quantum field theory. --- Intégrales de chemin --- Théorie quantique des champs --- Quantum field theory --- Integrals, Path --- Integrals --- Probabilities --- Quantum theory --- Statistical physics --- Relativistic quantum field theory --- Field theory (Physics) --- Relativity (Physics) --- Intégrales de chemin --- Théorie quantique des champs

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Quantum mechanics. Quantumfield theory --- Quantum field theory. --- Path integrals. --- Théorie quantique des champs --- Intégrales de chemin --- 530.145 --- #dd Sabbe Camiel cfx --- 530.19 --- Quantum theory --- Fundamental functions in general. Potential. Gradient. Intensity. Capacity etc. --- 530.19 Fundamental functions in general. Potential. Gradient. Intensity. Capacity etc. --- 530.145 Quantum theory --- Théorie quantique des champs --- Intégrales de chemin --- Path integrals --- Quantum field theory --- Integrals, Path --- Integrals --- Probabilities --- Statistical physics --- Relativistic quantum field theory --- Field theory (Physics) --- Relativity (Physics) --- Fundamental functions in general. Potential. Gradient. Intensity. Capacity etc