Archer develops devices for reading quantum information

Quantum development company Archer Materials has manufactured two proof-of-concept electrical devices which have improved the readout of data of its quantum devices and enhanced manufacturability of the company’s 12CQ quantum chip.

Archer’s quantum team developed two complementary superconducting spin readout circuits, consisting of up to eight resonators. Each circuit resonator can simultaneously readout separate spin material.

Quantum computers store and retrieve information at the sub-atomic level based on the varying ‘spin’ of individual electrons in an atom.

According to Archer, the devices move the company closer to the future scaled manufacture of the 12CQ chip, which seeks to enable quantum computing for use in mobile applications.
The Executive Chair of Archer Greg English said: “The 12CQ project continues to make significant steps towards functionality.

“To be functional, the chip needs to be able to have the ability to detect the input of quantum information, and output information, or display it, known as control and readout, respectively.

“The two proof-of-concept electrical devices brings us closer to readout, or the reading out of electron quantum spin information, and bolsters the manufacturability of the qubit material.”

Archer created and characterised the devices by using simulation software developed by US based international software company, Sonnet Precision Electromagnetics, and is partnering with academic researchers at the University of New South Wales.

The group used the simulation software to optimise the resonator design and performed measurements over three campaigns that involved testing superconducting readout circuits at temperatures below -269 degrees Celsius and at magnetic fields of up to 1.5 Tesla.

“This development provides the necessary groundwork for the future measurement of very small quantities of Archer’s quantum spin material.”

Picture: Archer Materials