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Quantum Physics Jan 19, 2022

Quantum computing in silicon hits 99% accuracy

UNSW Sydney-led research paves the way for large silicon-based quantum processors for real-world manufacturing and application.

Nanophysics Jan 12, 2022

Building a silicon quantum computer chip atom by atom

A University of Melbourne-led team has perfected a technique for embedding single atoms in a silicon wafer one-by-one. Their technology offers the potential to make quantum computers using the same methods that have given ...

Quantum Physics Jan 11, 2022

In-fridge controller could scale up quantum computers

A collaboration between computer scientists and physicists at the University of Chicago broke through one of the key obstacles for large-scale quantum computing by figuring out how to move their control signals "inside the ...

Superconductivity Dec 22, 2021

A-list candidate for fault-free quantum computing delivers surprise

A Rice University-led study is forcing physicists to rethink superconductivity in uranium ditelluride, an A-list material in the worldwide race to create fault-tolerant quantum computers.

General Physics Dec 20, 2021

Measuring a quantum computer's power just got faster and more accurate

What does a quantum computer have in common with a top draft pick in sports? Both have attracted lots of attention from talent scouts. Quantum computers, experimental machines that can perform some tasks faster than supercomputers, ...

Quantum Physics Dec 16, 2021

Research team takes important step in quantum computing with error correction

Researchers at QuTech—a collaboration between the TU Delft and TNO—have reached a milestone in quantum error correction. They have integrated high-fidelity operations on encoded quantum data with a scalable scheme for repeated ...

Optics & Photonics Dec 15, 2021

Flawed diamonds may provide perfect interface for quantum computers

Flaws in diamonds—atomic defects where carbon is replaced by nitrogen or another element—may offer a close-to-perfect interface for quantum computing, a proposed communications exchange that promises to be faster and more ...

Quantum Physics Dec 9, 2021

Crucial leap in error mitigation for quantum computers

Researchers at Lawrence Berkeley National Laboratory's Advanced Quantum Testbed (AQT) demonstrated that an experimental method known as randomized compiling (RC) can dramatically reduce error rates in quantum algorithms and ...

Quantum Physics Dec 7, 2021

Algorithm to increase the efficiency of quantum computers

Quantum computers have the potential to solve important problems that are beyond reach even for the most powerful supercomputers, but they require an entirely new way of programming and creating algorithms.

Nanophysics Nov 30, 2021

Shrinking qubits for quantum computing with atom-thin materials

For quantum computers to surpass their classical counterparts in speed and capacity, their qubits—which are superconducting circuits that can exist in an infinite combination of binary states—need to be on the same wavelength. ...

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