Persistent current and zero-energy Majorana modes in a p-wave disordered superconducting ring

Article

关键词: JOSEPHSON-JUNCTION NETWORK;    BOUNDARY FIELD-THEORY;    RANDOM-MATRIX THEORY;    KONDO MODEL;    NANOWIRE;    FERMIONS;    CHAINS;    PARTICLES;    SIGNATURE;    IMPURITY;   

DOI  :  10.1103/PhysRevB.95.155449

来源: SCIE

【 摘 要 】

We discuss the emergence of zero-energy Majorana modes in a disordered finite-length p-wave one-dimensional superconducting ring, pierced by a magnetic flux Phi tuned at an appropriate value Phi = Phi(*). In the absence of fermion parity conservation, we evidence the emergence of the Majorana modes by looking at the discontinuities in the persistent current I[Phi] at Phi = Phi(*). By monitoring the discontinuities in I[Phi], we map out the region in parameter space characterized by the emergence of Majorana modes in the disordered ring.

【 授权许可】

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