Titlebook: Quantum Mechanics; From Atoms to Nuclei Umberto Lombardo,Gianluca Giuliani,Yifei Niu Textbook 2024 Science Press 2024 Space-Time Symmetries

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Semi-classical Limit,nd the equations of motion. Secondly, the Wigner transform of the density is the natural extension of the particle distribution in the phase space and so it is suitable for the semi-classical treatment of quantum fluid dynamics.

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2198-7882 n a unitary framework.Is free for readers: Additional questi.This book is intended to provide a self-contained introduction to the principles of Quantum Mechanics, based on the analysis of measurement processes of microscopic systems and the introduction of the physical observables as generators of

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Two-Body Problem: Scattering States,reach a detecting array, where each detector . is devised to detect particles in a definite state .. The experimental data are the set of counts at each detector, giving the particle’s probability of being in ., expressed in terms of cross section.

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States and Dynamical Variables,the quantum state as a superposition of detection states, such as the two polarization states in the Stern–Gerlach experiment. In this chapter, we shall show how the quantum–mechanical formalism of states and dynamical variables naturally arises from the analysis of measurements of observables made

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Space Translations and Momentum, space–time symmetry transformations. Firstly, the position variable will be postulated as physical observable, as empirically proven, e.g., in the two-slit experiment. Then, the momentum will be introduced as a generator of the space translations and its properties discussed, including the eigenval