Detecting Majorana modes by readout of poisoning-induced parity flips

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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.

Original languageEnglish
Article number121401
JournalPhysical Review B
Volume107
Issue number12
Number of pages6
ISSN2469-9950
DOIs
Publication statusPublished - 3 Mar 2023

    Research areas

  • SINGLE QUANTUM-DOT, STATES, SPIN

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