Ray Tracing, Bounding Volume Hierarchy, Bvh, Axis Aligned, Tetrahedron Octahedron.
section preliminary results for a reason, and this is not an all encompassing scientific paper, but a blog post. Still, I think it is fair to say that AABOs are definitely noteworthy alternatives to AABBs. To get a better grasp of what AABTs might be capable of when using a more intelligent BVH