Superinductances for Quantum Electronics

Superconducting circuits using networks of Josephson junctions implement on chip artificial atoms and molecules with custom designed Hamiltonians. Direct applications include the implementation of quantum circuits topologically protected against decoherence or the design of frequency-to-current conversion devices. This emerging field of quantum electronics is challenged by the engineering of an electromagnetic component which suppresses simultaneously the quantum fluctuations of charge and the ever present lowfrequency charge noise. We present the successful implementation of such a component, nicknamed “superinductance”