Majorana fermions, particles that act as their own antiparticle and were first hypothesized by Italian physicist Ettore Majorana in 1937, have not been detected after all.
A 2017 report of the discovery of a particular kind of Majorana fermion, the chiral Majorana fermion, was a false alarm,
finds a new study, which means construction of a topological quantum computer also remains elusive.
Some particle physicists are using underground observatories to discover if the ghost-like particle known as the neutrino, a subatomic particle that rarely interacts with matter, might be a Majorana fermion.