Work

Quantum Superinductor with Tunable Nonlinearity

Year: 2012

Type: article

Abstract: We report on the realization of a superinductor, a dissipationless element whose microwave impedance greatly exceeds the resistance quantum R(Q). 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 μs. 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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.109.137003

Authors: M. T. Bell, I. A. Sadovskyy, L. B. Ioffe, A. Yu. Kitaev, M. E. Gershenson

Institutions: Rutgers, The State University of New Jersey, Centre National de la Recherche Scientifique, Laboratoire de Physique Théorique et Hautes Energies, California Institute of Technology

Language: English

Topic: Quantum Information and Cryptography

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Defense Advanced Research Projects Agency, Army Research Office

OpenAlex ID: W2165522136

FWCI: 8.192

Cites: 18

Cited by: 124

Related to: 10