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Physics  Quantum Mechanics and Applications
Title: Quantum Mechanics and Applications
Department: Physics
Author: Prof. Ajoy Ghatak
University: IIT Delhi
Type: WebLink

Basic mathematical preliminaries:Dirac Delta function and Fourier Transforms.

Wave particle duality, one' and three' dimensional Schrödinger equation. The free particle problem in one dimension. Wave Packets and Group velocity.

One'dimensional problems: Potential well of infinite and finite depths, the linear harmonic oscillator.

Angular Momentum and rotation.

Three'dimensional Schrödinger equation: Particle in a box with applications to the free electron model. Particle in a spherically symmetric potential problem. The hydrogen atom and the deuteron.

(A numerical method to obtain solutions of the Schrödinger equation will also be discussed and a software to understand basic concepts in quantum mechanics will also be demonstrated).

Dirac’s bra ' ket algebra; Linear Harmonic Oscillator problem using bra ' ket algebra, creation and annihilation operators, transition to the classical oscillator, Coherent states.

The angular momentum problem, using bra ' ket algebra, ladder operators and angular momentum matrices. The Stern Gerlach and magnetic resonance experiments. Addition of Angular Momenta and Clebsch Gordon coefficients.
Perturbation Theory with applications; The JWKB approximation with applications; Scattering Theory: Partial Wave Analysis.
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