Majorana fermions (MF) creation, braiding and fusion

Scientists have been searching for Majorana fermion (MF), a quantum particle that is its own antiparticle, for nearly a century, including in particle physics. It is predicted that MFs exist in topological superconductors (TS), with a high potential for the integration of MFs into quantum circuits which could revolutionize the contemporary physics and electronics. As a beautiful example of emergent quantum states, the MF and induced entangled quantum states will galvanize other workers in various fields widely benefiting the society. Being its own antiparticle, MF is considered as “half” of the quantum state of an electron. Spatially decomposing the electron quantum-coherently into two descendant MFs is achievable in a TS nanowire that creates highly entangled quantum states of electrons. They carry quantum information non-locally, thus are immune from decoherence, laying the foundation for the fault-tolerant quantum computation that has been pursued for decades. With proper materials and nano-scale devices as well as a team of world’s leading experimentalists and theorists, we aim to create the first braiding architecture device of MFs consisting of TS nanowire networks for generating highly entangled electronic quantum states in which many fundamental physics are expected. Our capability of simultaneously measuring by tunneling spectroscopy of superconducting gold nanowire the zero bias conductance peak (ZBCP) at both ends and in the middle of the nanowire will clearly prove the existence of Majorana fermion. We emphasize that all previous work on Majorana did not have this capability, and if we succeed in seeing the simultaneous appearance and disappearance of ZBCP at both ends and not in the middle, this will be very strong evidence that these features are coming from Majoranas rather than due to some accidental in gap bound states. The superconducting gold nanowire approach is inherently robust with 1000X larger spin-orbit energy than in other approaches.