qubit Archives

Quantum researchers strike the right chord with silicides

SQMS Center researchers have identified a new contribution to a qubit’s performance by probing and simulating several-atom-thick layers called silicides.

It’s colossal: Creating the world’s largest dilution refrigerator

To cool quantum computing components, researchers use machines called dilution refrigerators. Researchers and engineers from the SQMS Center are building Colossus, the largest, most powerful refrigerator at millikelvin temperatures ever made. The new machine will enable new physics and quantum computing experiments.

Physicists create the smallest, crummiest wormhole you can imagine

From the New York Times, Nov. 30, 2022: Yesterday, a science team led by Cal Tech announced they had simulated a pair of black holes in a quantum computer and sent a message between them through a shortcut in space-time called a wormhole. Fermilab’s Joe Lykken co-authored the paper published in Nature yesterday and provides details on what the team uncovered.

Access to University of Chicago’s Pritzker Nanofabrication Facility enables quantum research

SQMS Center researchers have fabricated quantum devices to evaluate the effect of different materials on qubit performance, thanks to proximity to the Pritzker Nanofabrication Facility.

New measurements point to silicon as a major contributor to performance limitations in superconducting quantum processors

Scientists at the SQMS Center have directly probed silicon’s impact on the lifespan of superconducting qubits. The uniquely sensitive measurement helped researchers quantify how the material impacts qubit performance.

Fermilab develops a new generation of quantum control electronics for improved size, performance, and cost

From Quantum Computing Report, April 30, 2022: A Fermilab quantum engineering team has collaborated with the University of Chicago to create a new open-source design for control electronics for superconducting quantum processors called the Quantum Instrumentation Control Kit.

New SQMS study uncovers impurities in a qubit

Scientists at the Fermilab-led SQMS Center investigate qubits at the atomic level to identify sources of various impurities. By having a deeper understanding of how impurities affect how long a qubit can store information, scientists will be able to figure out how to further improve the performance of quantum computers.