Research

• Cluster physics: Change in physical characteristics between bulk material and small clusters.
• Computer simulations: Ab initio calculations of atomic, molecular, and bulk properties.
• Density functional theory (DFT): Implementation of DFT in ab initio calculations. Approximations to the exchange-correlation functional.
• Pseudopotentials: Transferability of pseudopotentials, soft pseudopotentials that can be represented with a small(er) number of plane waves, relativistic corrections for heavy atoms.

Teaching

I recently (2004) joined the Department as a Lecturer in physics. My husband, Patrick, is an Assistant Professor working on theoretical particle physics and cosmology. At the present, I am teaching two sections of Technical Physics II (calculus-based physics for physical science and engineering majors).

Selected Papers

• Sigrid Greene and Pui K. Lam, "Investigations of small boron nitride clusters", Maui High Performance Computing Center Applications Briefs, pp. 42-43, 2002.
• Sigrid Greene and Pui K. Lam, "Tetrahedral Bonding is unstable for BN in 1 and 2 dimensions", in preparation.
• Sigrid Greene and Pui K. Lam, "Theoretical Investigation of Boron Nitride Growth", letter in preparation.
   

Last update: Wednesday May 11, 2005