High Quality Content by WIKIPEDIA articles! A Majorana fermion, also referred to as a majorana particle, is a fermion that is its own antiparticle. The term is sometimes used in opposition to Dirac fermion, which describes particles that differ from their antiparticles. It is common that bosons (such as the photon) are their own antiparticle. No elementary fermions are known to be their own antiparticle, but in condensed matter physics, Majorana fermions exist as quasiparticle excitations in superconductors and can be used to form Majorana bound states possessing non-abelian statistics.