Unit-I
Why Quantum Mechanics? Revision, inadequacy of classical mechanics,
development of Schrodinger equation, continuity equation, wave-packet
admissible wave functions stationary states. Formalism of wave
mechanics, expectation values, quantum mechanical operators for
position and momentum in the coordinate representation.
Unit-II
Construction of quantum mechanical operators for other dynamical
variables from those of position and momentum. Ehrenfest’s
theorem, momentum eigen functions in the coordinate representation,
box normalization and Dirac delta normalization.
Brief revision of linear vector spaces, inner or scalar product,
Schwarz inequality, state vector, general formalism of operator
mechanics vector
Unit-III
Operator algebra, commutation relations, eigen values, eigen vectors,
hermitian operators degeneracy, orthogonality of eigenvectors
of Hermitian operators, non-commutativity of two operators and
uncertainty in the simultaneous measurements of the corresponding
dynamical variables. The fundamental expansion postulate, representation
of state vector, Dirac’s bra-ket notations.
Unit-IV
Matrix representation of operators, change of basis, unitary transformations,
Harmonic oscillator problem by operator method
Unit-V
Angular momentum in QM: commutation relations, eigen values and
eigen-function of L2 operator. Role of L2 operator in central
force problems, radial part of eigenfunction for hudrogen atom,
three dimensional square well potential, parity of wave functions
and parity operator,
Text and Reference Books
- L.I. Schiff, Quantum Mechanics (McGraw-Hill)
- S. Gasiorowicz, Quantum Mechanics (Wiley)
- B. Craseman and J.D. Powell, Quantum Mechanics (Addison Wesley)
- A.P. Messiah, Quantum Mechanics
- Mathews and Venkatesan, Quantum Mechanics.
Unit-I
Transistors: JFET, BJT, MOSFET and MESFET: Structure, Working,
Derivations of the equations for I-V characteristics under different
conditions; High frequency limits.Microwave devices: Tunnel diodes,
transfer electron devices (Gunn diode); Avalanche transit time
devices, Impatt diodes and parametric devices.
Unit-II
Photonic devices: Radiative and non-radiative transitions.
Optical absorption, Bulk and thin film Photoconductive devices
(LDR), diode photo-detectors, Solar cell-(open circuit voltage
and short circuit current, fill factor). LED (high frequency limit,
effect of surface and indirect recombination current operation
of LED).
Unit-III
Laser device: Diode laser (condition for population inversion
in active region, light confinement factor. Optical gain
and threshold current for lasing, Fabry-Perrot cavity length for
lasing and the separation.
Memory devices: Static and dynamic random access memories
SRAM and DRAM, CMOS and NMOS, non-volatile – NMOS, magnetic,
optical and ferroelectric memories, charge coupled devices (CCD).
Unit-IV
Other electronic devices: Electro-optic, Magneto-optic and Acousto-optic
effects. Material properties related to get these effects.
Important ferroelectric, Liquid crystal and Polymeric materials
for these devices.
Unit-V
Piezoelectric, Electrostrictive and magneto-strictive effects,
Important materials exhibiting these properties, and their applications
in sensors and actuator devices. Acoustic delay lines, piezoelectric
resonators and filters. High frequency piezoelectric devices-Surface
Acoustic Wave Devices.
Text and Reference Books.
- Semiconductor Devices – Physics and Technology, By S.M.
Sze, Wiley (1985).
- Introduction to semiconductor devices, M.S. Tyagi, John Wiley
and Sons.
- Measurement, Instrumentation and experimental design in Physics
and Engineering by M. Sayer and A. Mansingh, Prentice Hall,
India (2000).
- Optical electronics by Ajoy Ghatak and K. Thyagarajan, Cambridge,
Univ. Press.
M. Sc. Physics (II SEMISTER)
Paper-V
quantum Mechanics-iI
Unit-I
Time dependent perturbation theory, First order perturbation theory
applied to non-degenerate states, second order perturbation, Application
of perturbation theory to the ground state energy of He atom (calculation
given in Pauling and Wilson), Normal and anomalous Zeeman effect,
first order Stark effect in the ground and first excited states
of H atom and second order Stark effect of H atom, an-harmonic
oscillator.
Unit- II
Time dependent perturbation theory, transition rate, constant
perturbation harmonic in time, radiative transitions, absorption
and induced emission, atomic radiation, dipole approximation,
Einstein’s atomic radiation, Einstein’s A and B coefficients
and their calculations.
Approximation methods: W.K.B. method and its application
to barrier penetration. Variational principle and its application
to simple cases like ground state of He atom and deuteron in Yukawa
potential.
Unit-III
System of identical particles, exchange and transposition operators,
totally symmetric and anti-symmetric wave function and their expressions
for a system of non-interacting particles, statistics of systems
of identical particles, Relation of statistics with spin, Ortho
and para states of the helium atom and their perturbation by Coulomb
repulsion.
Unit-IV
Scattering theory, scattering cross-section in laboratory and
centre of mass system, scattering by a central potential, Partial
wave method, phase shifts and their importance, scattering by
a square well potential and a perfectly rigid sphere, resonance
scattering.
Unit-V
Hamiltonian of a molecule, Born-Oppenheimer approximation, Heitler-London
theory of the hydrogen molecule, Outline of the helium atom and
their perturbation by the Coulomb repulsion.
Text and Reference Books.
- E. Merzbacher, Quantum Mechanics (Wiley and Sons-Toppon)
- J. L. Fowell and b. Crazemann, Quantum mechanics ( B I Publications)
- L I Schiff, Quantum Mechanics (McGraw-Hill)
- D. Bohm, Quantum Theory (Asia Publishing House)
- Pauling and Wilson, Introduction to Quantum Mechanics
- A.K. Ghatak and S. Lokanathan, Quantum Mechanics (Macmillan,
India)
- P.T. Mathews and K. Venkatesan, A text book of Quantum Mechanics
( Tata McGraw-Hill)
- P.T. Mathews, Introduction to Quantum Mechanics (Tata-McGraw-Hill)
M. Sc. Physics (II Semester)
Paper-VI
Statistical mechanics
Unit-I
Foundation of statistical mechanics; Specification of states of
a system, contact between statistics and thermodynamics, Classical
ideal gas, Entropy of mixing and Gibbs’s paradox. Micro-canonical
ensemble, phase space, trajectories and density of states, Liouville’s
theorem, Canonical and grand canonical ensembles; Patrician function,
calculation of statistical quantities, energy and density fluctuations.
Unit-II
Density matrix, statistics of ensembles, statistics of indistinguishable
particles, Maxwell-Boltzmann, Fermi-Dirac and Bose-Einstein statistics,
properties ideal Bose and Fermi gases, Bose-Einstein condensation.
Unit-III
Cluster expansion for classical gas, Virial equations of states,
Ising model, Mean field theories of the Ising model in three,
two and one dimensions. Exact solutions in one dimension.
Unit-IV
Landau theory of phase transition, Critical indices, Scale transformation
and dimensional analysis.
Unit-V
Correlation of space-time dependent fluctuations, fluctuations
and transport phenomenon, Brownian motion, Langevin theory, fluctuation
dissipation theorem. The Fokker-Planck equation.
Text and Reference Books
- Statistical and thermal Physics, by F. Reif
- Statistical Mechanics by K. Huang
- Statistical Mechanics by R.K Patharia
- Statistical mechanics by R. Kubo
- Statistical Physics by Landau and Lifshitz
M. Sc. Physics (II SEMISTER)
Paper-VII
Electrodynamics and plasma physics
Unit-I
Review of Four-Vector and Lorentz transformation in four dimensional
space, Electromagnetic field tensor in four dimensions and Maxwell’s
equations, Duel field tensor, wave equation for vector and scalar
potential and solution, Retarded potential and Lienord-Wiechert
potential.
Unit-II
Electric and magnetic fields due to uniformly moving charge and
accelerated charge, Linear and circular acceleration and angular
distribution of power radiated, Bremsstrahlung, Synchrotron radiation
and Cerenkov radiation, reaction force of radiation.
Unit-III
Motion of charge particles in electromagnetic fields, uniform
E and B fields, Nonuniform fields,
diffusion across magnetic fields. Time varying E
and B fields, adiabatic in-variants; first,
second third adiabatic in-variants.
Unit-IV
Elementary concepts: derivation of moment equations from Boltzmann
equations, Plasma oscillations, Debye shielding, plasma parameters,
Plasma confinement.
Hydromagnetic waves: magneto-sonic and Alfven waves.
Unit-V
Wave phenomena in magneto-plasma: Polarization, Phase velocity,
Group velocity, cutoffs, resonance for EM wave propagating parallel
and perpendicular to magnetic field, Propagation at finite angle
and CMA diagram, Applton-Hartee formula and propagation ionosphere
and magnetosphere; Helicon, Whistler, Faraday Rotation.
Text and Reference Books:
1. Classical Electricity and Magnetism , Panofsky
& Phillips
2. Plasma Physics, Bittenciurt
- Plasma Physics, Chen
- Classical Electrodynamics, J. D. Jackson (second and third
Addition)
M. Sc. Physics (II Semester)
Paper-VIII
Atomic and molecular physics
Unit-I
Quantum states of one electron atoms-Atomic orbital-Hydrogen spectrum-Pauli’s
principle, Spectra of alkali elements-Spin orbit interaction and
fine structure in alkali Spectra-Equivalent and non-equivalent
electrons-
Unit-II
Normal and anomalous Zeeman effect, Paschen Back effect, Stark
effect.
Unit-III
Two electron systems, interaction energy in LS and JJ Coupling,
Hyperfine structure (Qualitative) – Line broadening mechanisms
(General ideas)
Unit-IV
Types of molecules, Diatomic linear symmetric top, asymmetric
to and spherical to molecules, Rotational spectra of diatomic
molecules as a rigid rotator, Energy levels and spectra of non-rigid,
Intensity of rotational lines, Stark modulated microwave spectrometer
(qualitative)
Unit-V
Vibrational energy of diatomic molecule, Diatomic molecule as
a simple harmonic oscillator, Energy levels and spectrum, Mores
potential energy curve, Molecules as vibrating rotator, Vibration
spectrum of diatomic molecule, PQR branches, IR spectrometer (qualitative)
Text and Reference Books
- Introduction to atomic spectra, H.E. White
- Fundamentals of molecular spectroscopy, C.B. Banwell
- Spectroscopy Vol. I, II & III, Walker & Straughen
- Introduction to molecular Spectroscopy , G. M. Barrow
- Spectra of diatomic molecules, Herzberg
- Molecular spectroscopy, G.M. Barrow
- Spectra of atoms and molecules, P.F. Bemath
- Modern spectroscopy, J.M. Holias.