Study of Josephson trijunction constructed on Bi₂Te₃ surface

In 2008, Fu and Kane proposed that Josephson trijunctions constructed on the surface of topological insulators could host Majorana zero modes [1]. Such trijunctions could potentially serve as the basic components in a two-dimensional platform for realizing universal topological quantum computing [2]. In this talk, we will present the results of experimental investigations on trijunctions constructed on the surface of Bi₂Te₃. And we will compare the experimental results with Fu and Kane’s theory as well as with the results of numerical simulations based on a lattice model.
[1] L. Fu, C.L. Kane, Physical Review Letters 100, 096407 (2008).
[2] S. Vijay, T.H. Hsieh, L. Fu, Physical Review X 5, 041038 (2015).