%0 Journal Article
%T Quantum Superinductor with Tunable Non-Linearity
%A M. T. Bell
%A I. A. Sadovskyy
%A L. B. Ioffe
%A A. Yu. Kitaev
%A M. E. Gershenson
%J Physics
%D 2012
%I arXiv
%R 10.1103/PhysRevLett.109.137003
%X We report on the realization of a superinductor, a dissipationless element whose microwave impedance greatly exceeds the resistance quantum. The design of the superinductor, implemented as a ladder of nanoscale Josephson junctions, enables tuning of the inductance and its nonlinearity by a weak magnetic field. The Rabi decay time of the superinductor-based qubit exceeds 1 microsecond. The high kinetic inductance and strong nonlinearity offer new types of functionality, including the development of qubits protected from both flux and charge noises, fault tolerant quantum computing, and high-impedance isolation for electrical current standards based on Bloch oscillations.
%U http://arxiv.org/abs/1206.0307v2