The conical intersection in pyridine. Resnonace Raman spectra of larger molecules like porphyrin. Anything goes as long as computational resources are available. A number of issues are pursued that are hard core theory, often fundamental physics. Progress happens in spurts, but often toy problems need to be solved that require more time than I have.
Help is needed.
Classical relativistic Many-Body mechanics. I have a mathematically consistent formulation of classical many-body relativistic mechanics involving either a Lagrangian or a Hamiltonian. Evolution of the system as a whole occurs in terms of an absolute Newtonian time , while the coordinates of the particles and their interactions are described in terms of , having a time coordinate for each particle, that is subject to Lorentz transformations, and is referred to as geometrical time. I would like to find gravitational forces that can descripe the perihelion movement in the Mercury-Sun system. Many aspects of this relativistic classical mechanics need to be understood better.