
Quantum Mechanics: Stationary Perturbation Theory
10 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
Stationary perturbation theory is concerned with finding the changes in the discrete energy levels and the changes in the corresponding energy eigenfunctions of a system, when the Hamiltonian of a system is changed by a small amount. In this section we provide reading material regarding...

Reading Material: TimeDependent Perturbation Theory
10 Jul 2008   Contributor(s):: Dragica Vasileska
www.eas.asu.edu/~vasileskNSF

Slides: TimeDependent Perturbation Theory
10 Jul 2008   Contributor(s):: Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

TimeDependent Perturbation Theory: an Exercise
10 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
www.eas.asu.edu/~vasileskNSF

Quantum Mechanics: TimeDependent Perturbation Theory
10 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
Timedependent perturbation theory, developed by Paul Dirac, studies the effect of a timedependent perturbation V(t) applied to a timeindependent Hamiltonian H0. Since the perturbed Hamiltonian is timedependent, so are its energy levels and eigenstates. Therefore, the goals of timedependent...

Reading Material: Harmonic Oscillator
09 Jul 2008   Contributor(s):: Dragica Vasileska
www.eas.asu.edu/~vasileskNSF

Slides: Harmonic Oscillator  Classical vs. Quantum
09 Jul 2008   Contributor(s):: Dragica Vasileska
www.eas.asu.edu/~vasileskNSF

Slides: Harmonic Oscillator  Brute Force Approach
09 Jul 2008   Contributor(s):: Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: Harmonic Oscillator  Operator Approach
09 Jul 2008   Contributor(s):: Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Harmonic Oscillator: Motion in a Magnetic Field
09 Jul 2008   Contributor(s):: Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Harmonic Oscillator: an Exercise
09 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
www.eas.asu.edu/~vasileskNSF

Quantum Mechanics: Harmonic Oscillator
09 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
The quantum harmonic oscillator is the quantum mechanical analogue of the classical harmonic oscillator. It is one of the most important model systems in quantum mechanics because an arbitrary potential can be approximated as a harmonic potential at the vicinity of a stable equilibrium point....

Reading Material: WKB Approximation
09 Jul 2008   Contributor(s):: Dragica Vasileska
www.eas.asu.edu/~vasileskNSF

Reading Material: Esaki Diode
09 Jul 2008   Contributor(s):: Dragica Vasileska
www.eas.asu.edu/~vasileskNSF

Slides: WKB Approximation 1
09 Jul 2008   Contributor(s):: Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: WKB Approximation 2
09 Jul 2008   Contributor(s):: Dragica Vasileska, David K. Ferry
www.eas.asu.edu/~vasileskNSF

Slides: WKB Approximation Applications
09 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
www.eas.asu.edu/~vasileskNSF

Homework: WKB Approximation
09 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
www.eas.asu.edu/~vasileskNSF

Quantum Mechanics: WKB Approximation
09 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
In physics, the WKB (Wentzel–Kramers–Brillouin) approximation, also known as WKBJ (Wentzel–Kramers–Brillouin–Jeffreys) approximation, is the most familiar example of a semiclassical calculation in quantum mechanics in which the wavefunction is recast as an exponential function, semiclassically...

Quantum Mechanics: Hydrogen Atom and Electron Spin
09 Jul 2008   Contributor(s):: Dragica Vasileska, Gerhard Klimeck
A hydrogen atom is an atom of the chemical element hydrogen. The electrically neutral atom contains a single positivelycharged proton and a single negativelycharged electron bound to the nucleus by the Coulomb force. The most abundant isotope, hydrogen1, protium, or light hydrogen, contains...