888-384-7144 info@insidequantumtechnology.com

Granular Aluminum Superinductors Could Enhance Qubit Performance

By IQT News posted 20 May 2019

(PhysicsWorld) Researchers from Karlsruhe Institute of Technology have built a high impedance inductor, or “superinductor”, from granular aluminium. The superinductor can be directly incorporated into superconducting qubit circuits to produce robust quantum systems.
Creating a superinductor is often laborious. Past approaches used arrays of hundreds of superconducting devices called Josephson junctions to build up a cumulatively large inductance. As a simpler alternative, the research team turned to granular aluminium (grAl), a superconducting material containing a mixture of pure, nanoscale aluminium grains and amorphous aluminum oxide.
The successful use of grAl as a material for qubit circuits could solve many of the problems currently limiting the scaling-up of superconducting quantum processors. Beyond quantum information, grAl superinductors could also be used to make inductance-based photon detectors and high impedance resonators, opening the door for a new generation of superconducting devices.

Subscribe to Our Email Newsletter

Stay up-to-date on all the latest news from the Quantum Technology industry and receive information and offers from third party vendors.

IQT Partner Program

Quantropi
DUSA
McAndrews
HKA
Aliro
RANDAEMON
Zapata
Quantum Xchange
Toshiba
Quintessence Labs
Keysight World
0