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Braiding Majorana zero modes using quantum dots

May 23, 2018

14 pages

Published in:

Phys.Rev.B 98 (2018) 16, 165426

Published: Oct 18, 2018

e-Print:

1805.09330 [cond-mat.mes-hall]

DOI:

10.1103/PhysRevB.98.165426

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Abstract: (APS)

We discuss a network of Kitaev wires coupled to several individually-tunable quantum dots as an extension of the recent experiments on a quantum dot coupled to a nanowire hosting Majorana zero modes [M. T. Deng , Science 354, 1557 (2016)SCIEAS0036-807510.1126/science.aaf3961; Phys. Rev. B 98, 085125 (2018)SCIEAS0036-807510.1103/PhysRevB.98.085125]. The setup features localized Majorana modes with exact zero energy and we show that they can be manipulated by solely acting on the quantum dots. A braiding process can be obtained by arranging three wires as a trijunction and a charge readout of the quantum dots can be used to reveal the non-Abelian statistics of Majorana zero modes. The setup can be scaled up to serve the more advanced purposes of topological quantum computation.

Note:

14 pages, 10 figures

Surface physics, nanoscale physics, low-dimensional systems

References(103)

Figures(10)

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