Course Objectives:
This course will enable the students to develop the basic knowledge of quantum mechanics and its application to various problems. It also deals with the techniques of wave mechanics like Schrödinger equation and its solution, angular momentum and spin. The student develops the understanding of quantum nature of e.m. radiations or light and wave nature associated with microscopic particles, the notion of quantum states, operators etc.
Course |
Learning outcome (at course level) |
Learning and teaching strategies |
Assessment Strategies |
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Paper Code |
Paper Title |
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DPHY 601 (C) |
Quantum Physics (Theory) |
The students will be able to –
CO87: Interpret different types of electromagnetic radiations.
CO88: Demonstrate the use of Quantum mechanical operators.
CO89: Solve Schrodinger equations for a number of problems.
CO90: Apply Schrödinger equation to solve problems using Boundary condition and continuity condition, Simple harmonic oscillator and Rigid rotator.
CO91: Acquire the knowledge of Angular momentum operators and their commutation relations.
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Approach in teaching: Interactive Lectures, Discussion, Tutorials, Power point presentation, Problem Solving in tutorials Learning activities for the students: Self learning assignments, Effective questions, Seminar presentation, Solving numerical |
Class test, Semester end examinations, Quiz, Solving problems, Assignments, Presentations |
Electromagnetic Radiation, Black Body Radiation, Planck’ Law of Radiation, Photoelectric Effect, Compton Effect.
Schrodinger equation:
Wave equation, wave function, and its interpretation, Schrödinger time dependent and time independent one-dimensional equation, three-dimensional Schrödinger wave equation (with eigen value and eigen function), probability current density, physical meaning of ψ, conditions to be satisfied by ψ.
Operators, algebra of operators, commutative property, linear operators, Commutator operator, eigen values and eigen functions, operators for momentum, K.E., Hamiltonian, total energy and angular momentum, Fundamental postulates of Q.M.
Hermitian operators, orthonormality, degeneracy, Commutation relations, Ehrenfest’s theorem, Bohr’s principle of complementarity, principle of superposition.
Boundary and continuity conditions on the wave function. Particle in one dimensional box, eigen function and eigen values, discrete energy levels, generalization to 3-D and degeneracy of levels
Boundary value problems:
Step potential, Penetration through rectangular barrier, calculation of reflection and transmission coefficients. Quantum mechanical tunneling. Square well potential problem, reflection and transmission coefficient and resonant scattering.
Rigid rotator: Schrodinger equation and its solution.
Introduction: orbital angular momentum, Operators for its Cartesian components, commutation relations, mutual as well as with L2 ,L+and L- operators , their interpretation as step operators, eigen values of Lz, Total angular momentum operators, commutation relations obeyed by the components of generalized momentum operator. Commutation relation of Jz with J+ and J- , J+ and J- ,commutation relation of J2 with J+ and J-.