There are several types of TQMs, each with its unique properties:
Topological Insulators: These materials act as insulators in their bulk form but have conducting states on their surfaces. Topological Superconductors: These materials can host Majorana fermions, which are particles that are their own antiparticles. Weyl Semimetals: These materials have Weyl fermions as quasiparticles and exhibit unique electronic properties such as the chiral anomaly.
