Majorana braiding dynamics in nanowires

Article

关键词: NON-ABELIAN STATISTICS;    FERMIONS;    SUPERCONDUCTOR;    SIGNATURE;   

DOI  :  10.1103/PhysRevB.91.174305

来源: SCIE

【 摘 要 】

Superconductors hosting long-sought excitations called Majorana fermions may ultimately be used as qubits of fault-tolerant topological quantum computers. A crucial challenge for the development of practical topological quantum computers is the implementation of quantum operations of nearly degenerate quantum states as a dynamical process of Majorana fermions. In this paper, we investigate the braiding dynamics of Majorana fermions on superconducting nanowires. In a finite-size system, a nonadiabatic dynamical process between nearly degenerate states dominates the braiding that operates qubits of Majorana fermions. Our simulations clarify how qubits behave in the real-time braiding process and elucidate the optimum superconducting nanowire conditions for efficient topological quantum operation.

【 授权许可】

Free