Towards Topological Quantum Computing with Carbon

Research question

Quantum phenomena are inherently fragile, and all state-of-the-art quantum computing platforms face significant error rates. Fundamentally, topology offers the most robust route to protecting quantum information. This project explores a particularly attractive approach: realizing topological qubits in moiré-structured multilayer graphene, a highly tunable, carbon-based, and intrinsically sustainable platform.

We combine internationally leading expertise from WACQT in topological phases and non-Abelian fractional Chern insulators with the state-of-the-art strengths of WISE in atomistic modelling of complex carbon materials and defects. Together, we will develop a unique framework that connects realistic moiré band structures and defect configurations in multilayer graphene to effective low-energy models hosting non-Abelian anyons.

Sustainability aspects

Carbon is abundant in nature and non-toxic in its pure form, making carbon-based platforms inherently sustainable. By focusing on next-generation information technologies, this project directly addresses SDG 9 (Industry, Innovation, and Infrastructure). Its emphasis on carbon-only materials also aligns with SDG 12 (Responsible Consumption and Production), supporting more sustainable pathways for future IT technologies.

While quantum technologies often require low operating temperatures, increasing energy consumption, a key long-term goal of this project is to enable higher-temperature operation of quantum devices. This would reduce energy demands and further enhance the sustainability of quantum computing platforms.