Titlebook: Quantum Mechanics; Axiomatic Approach a Tapan Kumar Das Textbook 2023 The Editor(s) (if applicable) and The Author(s), under exclusive lice

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,Formulation of Quantum Mechanics: Representations and Pictures,errelations. It then goes on to present different pictures for the quantum dynamics: Schrödinger, Heisenberg and interaction pictures from different perspectives. Matrix eigen value equation has been discussed as a mathematical preliminary.

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,Solution of Schrödinger Equation: Boundary and Continuity Conditions in Coordinate Representation,localized systems. Bound, unbound and quasi-bound systems are discussed. Introducing quantum numbers, importance of symmetry in choosing coordinate system and its connection with degeneracy have also been discussed. Wave packets, Ehrenfest’s theorem and their relation with classical physics have bee

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One-Dimensional Potentials,s: infinite and finite square well, harmonic oscillator well, infinite well with a delta function, quasi-bound state in a delta function barrier. Motion of a wave packet in a harmonic oscillator well is also discussed.

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,Particle in a 3-D Well,drical hole with rigid walls and the three-dimensional spherically symmetric harmonic oscillator. We stress that the choice of a coordinate system consistent with the symmetry of the system simplifies the problem.

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,Scattering in  Three Dimension,eoretical analysis. These are justified by specifying the widely different scales of length, mass, etc. This discussion provides understanding of both the experimental setup and the theoretical analysis, making a convincing bridge between the two. Partial waves, phase shift, etc., for spherically sy

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