Kavli Affiliate: Xiang Zhang
| First 5 Authors: Xiang Zhang, Zhaozheng Lyu, Guang Yang, Bing Li, Yan-Liang Hou
| Summary:
We studied anomalous Josephson effect (AJE) in Josephson trijunctions
fabricated on Bi$_2$Se$_3$, and found that the AJE in T-shaped trijunctions
significantly alters the Majorana phase diagram of the trijunctions, when an
in-plane magnetic field is applied parallel to two of the three single
junctions. Such a phenomenon in topological insulator-based Josephson
trijunction provides unambiguous evidence for the existence of AJE in the
system, and might provide an additional knob for controlling the Majorana bound
states in the Fu-Kane scheme of topological quantum computation.
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