Creating New Two-dimensional Topological Insulators for Fault-tolerant Quantum Computing
Takafumi Akiho · NTT technical review · 2017
Two-dimensional topological insulators (2DTIs) pave the way to explore novel quasiparticles for fault-tolerant quantum computing and to create devices utilizing spin degree of freedom.However, host materials that realize 2DTIs have so far been limited to two systems.In this article, we propose a strained quantum well structure as a new 2DTI candidate and demonstrate that strain enhances the energy gap and leads to superior bulk insulation properties.