Majorana fermions are exotic particles that are their own antiparticles. Predicted by the Italian physicist Ettore Majorana in 1937, these particles have a unique property: they can annihilate themselves. Unlike regular fermions, such as electrons, which have distinct antiparticles, Majorana fermions are neutral and have no distinct antiparticle. This unique characteristic makes them highly significant in the fields of quantum computing and topological quantum computing.