Braiding Majorana zero modes using quantum dots

Abstract

We discuss a network of Kitaev wires coupled to several individually-tunable\nquantum dots as an extension of the recent experiments on a quantum dot coupled\nto a nanowire hosting Majorana zero modes [Deng et al. Science 354 1557 (2016)\nand Deng et al. arXiv:1712.03536 (2017)]. The setup features localized Majorana\nmodes with exact zero energy and we show that they can be manipulated by solely\nacting on the quantum dots. A braiding process can be obtained by arranging\nthree wires as a trijunction and a charge readout of the quantum dots can be\nused to reveal the non-Abelian statistics of Majorana zero modes. The setup can\nbe scaled up to serve the more advanced purposes of topological quantum\ncomputation.\n