Theoretical and Computational Physics
Martin Bier does theoretical work involving thermodynamics, dynamical systems, complex networks, and stochastic processes. Through a combination of computer simulations, acquisition of data, and theoretical approximations, our group tries to understand why and how systems behave the way they do. In this way we analyze the propagation of infectious disease, the transduction of energy through biomolecules, the transfer of stocks, etc.
![](https://physics.ecu.edu/wp-content/pv-uploads/sites/249/2020/03/3_Research_specialties_image30.jpg)
“Maxwell’s Demon” is a thought experiment that was first proposed 150 years ago. Later variations on Maxwell’s idea, like the one in the figure, are called “Maxwell Zombies.
![](https://physics.ecu.edu/wp-content/pv-uploads/sites/249/2020/03/3_Research_specialties_image32.jpg)
Compiled data for 5771 total L-shell XRPCS for proton energies 26 eV≤E1≤ 1 GeV and all elements with 24≤Z≤95 and universal fit.
![](https://physics.ecu.edu/wp-content/pv-uploads/sites/249/2020/03/3_Research_specialties_image12.jpg)
Collision of two gold nuclei at high energy as calculated from A Multi-Phase Transport (AMPT) model. Length of the box is 60fm=6×10-14 m; time covers the first 30fm/c=10-22 s
Dr. Zi-Wei Lin does research in theoretical and computational physics. His research interests includes
- theoretical high energy heavy ion physics and development of Monte Carlo transport models,
- radiation physics and space radiation protection,
- medical physics on pseudo-CT methods for MRI-only radiotherapy.
These projects have involved undergraduate and graduate students, postdoctoral researchers, visiting students, and visiting professors.