Woohoo Singapore represent! Ok serious question though: is he the only world leader that can code?
Afaik she approximated the Schrödinger equation to compute the rate of decay of molecules with up to 6 atoms.
This [2] is the last physics paper of her (from 1990). After the wall fell, her interests changed quite a bit... Only political papers from then on.
[1] http://www.file-upload.net/download-9106454/AM-Diss.pdf.html
It may be rigged, not sure.