Graphene-based Devices: The high mobility of Dirac fermions in graphene enables the creation of ultra-fast transistors and other electronic components. Topological Insulators: These materials can host surface states that are protected by topological invariants, making them robust against impurities and defects. This can be useful in quantum computing and spintronics. Quantum Computing: Massless fermions can be used to create qubits that are more stable and less prone to decoherence, thereby enhancing quantum computational efficiency.
