Individual and collaborative
research projects of researchers, postdoctoral fellows and
students in the Computational Physics group as well as class projects from
Computational Physics course are described below.
Future Students: see the information page about
new openings in this group.
Projects since 1998
including downloadable software and html descriptions.
Animated Simulated Annealing - A. Silverman
- Time-dependent Schroedinger Equation - Y. ben Horin
- Kronig-Penney Model - I. Nofar
- Metropolis and Wolff Algorithms - G. Baum
Lattice Vibrations - M. Goldenberg
- Percolation - I. Braslavsky
The Schroedinger Movie - Shai Goldberg
(Copies of the movie may be ordered at cost:
- Computer Simulations for Atoms Inside a Laser Light Potential
- Tal Kidan
(A preprint and programs can be found
in directory pub/preprints/KAR and pub/programs/KAR
- The AViz Package: This is
a MESA implementation for the
3D visualization of crystal data, and
solves a problem that arises frequently in condensed matter research.
One wishes to quickly (and cheaply)
look at tens of atoms in a particular lattice structure, rotate it and
add, remove, displace some or all the atoms.
Mechanical models are difficult to alter and thus unsuited.
Most chemical packages are limited in the number of atoms they can handle, and
while commercial packages such as AVS can fulfil these requirements with ease,
not all researchers have them at hand on their desktop
For AViz (programmed in c),
the data is presented
in a simple x,y,z format, bonds of the desired length can be included,
and results of a simulated annealing or molecular dynamics
can be viewed interactively. This package replaces our older Vi3d package
with additional features. More information on the AViz page.
- Visualization of Graphical methods of Series analysis (VGS):
Visualization in condensed matter research is not limited to looking at the
atoms themselves. Sometimes one needs to explore multi-dimensional parameter
spaces of functions describing, for example, some thermodynamic quantity.
One application is to
the analysis of results for critical
temperatures and exponents from exact enumerations of
the magnetization and susceptibility of models of magnetic systems.
Here, Pad\'e approximants are taken to the expansions and conclusions are
drawn from observing intersections of approximant surfaces
in a three dimensional
parameter space of two critical exponents and the critical temperature.
The VGS package was developed for this need
in collaboration with S. Shapira and I. Chang. It is DISSPLA based.