Skip to main content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.


The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Harold Wickes Hatch

My research interests include the development of new molecular simulation methods, coarse-grained models of monoclonal antibodies, self-assembly of patchy particles, protein stability and hydrophobic hydration. My curriculum vitae may be found on my personal website ( Please contact us if interested about undergraduate or postdoctoral fellowships that are offered within our group.

The Free Energy and Advanced Sampling Simulation Toolkit (FEASST) is a free, open-source, modular program to conduct molecular and particle-based simulations with flat-histogram Monte Carlo and molecular dynamics methods.

The Standard Reference Simulation Website is an ongoing project whose aim is to provide well-documented simulation results for a variety of systems and from various simulation techniques.


  • National Research Council Postdoctoral Fellowship, 2013
  • National Science Foundation Graduate Research Fellowship, 2010
  • Princeton University Gordon Y. S. Wu Fellowship, 2008
  • Barry M. Goldwater Scholarship, 2007
  • Tulane University Founders Scholarship, 2003


Monte Carlo Simulation of Cylinders with Short-Range Attractions

Harold W. Hatch, Nathan Mahynski, R. P. Murphy, Marco Blanco, Vincent K. Shen
Cylindrical or rod-like particles are promising materials for the applications of fillers in nanocomposite ma- terials and additives to control rheological
Created July 30, 2019