Detecting Majorana modes by readout of poisoning-induced parity flips

Article

关键词: SINGLE QUANTUM-DOT;    STATES;    SPIN;   

DOI  :  10.1103/PhysRevB.107.L121401

来源: SCIE

【 摘 要 】

Reading out the parity degree of freedom of Majorana bound states is key to demonstrating their non-Abelian exchange properties. Here, we present a low-energy model describing localized edge states in a two-arm device. We study parity-to-charge conversion based on coupling the superconductor bound states to a quantum dot whose charge is read out by a sensor. The dynamics of the system, including the readout device, is analyzed in full using a quantum-jump approach. We show how the resulting signal and signal-to-noise ratio differentiates between local Majorana and Andreev bound states.

【 授权许可】

Free