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Robust Majorana modes using quantum dot-superconductor hybrids

Published on:

6 November 2023

Primary Category:

Mesoscale and Nanoscale Physics

Paper Authors:

Francesco Zatelli,

David van Driel,

Di Xu,

Guanzhong Wang,

Chun-Xiao Liu,

Alberto Bordin,

Bart Roovers,

Grzegorz P. Mazur,

Nick van Loo,

Jan Cornelis Wolff,

A. Mert Bozkurt,

Ghada Badawy,

Sasa Gazibegovic,

Erik P. A. M. Bakkers,

Michael Wimmer,

Leo P. Kouwenhoven,

Tom Dvir

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Key Details

Creates Majorana modes using quantum dots hybridized with a superconductor

The hybridized 'YSR' dots make the Majorana modes more robust

Larger gap to excited states compared to previous approaches

Reduced sensitivity to charge noise by two orders of magnitude

Enables future qubit and non-Abelian experiments

AI generated summary

Robust Majorana modes using quantum dot-superconductor hybrids

This paper demonstrates a new way to create more stable Majorana zero modes using quantum dots coupled to a superconductor. By strongly hybridizing the dots with the superconductor, the resulting Majorana modes have a larger gap to excited states and are less sensitive to charge noise. This could enable their use for quantum information experiments.

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