Exploring the Role of Magic Angle Graphene Superconductivity in Advancing Quantum Computing

Abstract

Magic-angle twisted bilayer graphene (MATBG) has emerged as a highly tunable platform for studying strongly correlated electronic phenomena, including unconventional superconductivity. This material exhibits flat electronic bands at specific “magic” twist angles, leading to enhanced electron-electron interactions and a rich phase diagram featuring insulating and superconducting states. This review explores the structural and electronic properties of MATBG, superconducting mechanisms, and potential applications in quantum computing. We discuss how its gate-tunable superconductivity and high level of material purity may help mitigate decoherence in superconducting qubits. Comparisons with other superconductors highlight its unique position in the Uemura plot, aligning with unconventional high-temperature superconductors. Despite limitations such as low critical temperatures, MATBG offers promising pathways toward advanced quantum electronic devices.