The objective of this flagship is the development of electronic circuits based on nanodevices, to be used as building blocks for quantum computers. Its focus is on semiconducting and superconducting nanosystems, where the electron spin and clockwise/anti-clockwise circulating persistent currents are used as fundamental logic units.
Qubits will be fabricated using advanced nano-lithographic techniques, as well as novel epitaxial techniques aimed at producing high-purity materials. The nano-circuits, as well as the quantum algorithms used for the operations, are optimized with respect to fault tolerance, decoherence and probability leakage. Fast electronics will be developed for read-out and storage of quantum information.
The parallel nature of quantum logic yields an enormous potential for applications. However, to scale few-gates quantum logic circuits to practical computers will remain a challenge for many years.