Coulomb blockade in fractional topological superconductors

Article

关键词: NON-ABELIAN STATISTICS;    BIAS CONDUCTANCE PEAK;    QUANTUM HALL STATES;    MAJORANA FERMIONS;    SEMICONDUCTOR NANOWIRE;    HYBRID DEVICE;    ZERO-MODES;    PARITY;    ANYONS;   

DOI  :  10.1103/PhysRevB.96.041123

来源: SCIE

【 摘 要 】

We study charge transport through a floating mesoscopic superconductor coupled to counterpropagating fractional quantum Hall edges at filling fraction nu= 2/3. We consider a superconducting island with finite charging energy and investigate its effect on transport through the device. We calculate conductance through such a system as a function of temperature and gate voltage applied to the superconducting island. We show that transport is strongly affected by the presence of parafermionic zero modes, leading at zero temperature to a zero-bias conductance quantized in units of nu e(2)/h independent of the applied gate voltage.

【 授权许可】

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