A hard core process (HCP) deals with the deposition of hard spheres, generally of the same radius, that are forbidden to overlap. Suppose instead that the identical spheres are replaced with distinct shapes, e.g. spheres of distinct radii, or cuboids of distinct dimensions that can deposit in different orientations.
Is the resulting process a valid example of a marked HCP?
- When nonidentical spheres attach, the marks are their radii.
- When cuboids attach, the marks are their dimensions and orientation at the time of deposit.