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Quantum Physics Oct 26, 2022

Could energy efficiency be quantum computers' greatest strength yet?

Quantum computers have attracted considerable interest of late for their potential to crack problems in a few hours where they might take the age of the universe (i.e., tens of billions of years) on the best supercomputers. ...

Quantum Physics Oct 25, 2022

Graphs may prove key in search for Holy Grail of quantum error correction

In February 2019, JQI Fellow Alicia Kollár, who is also an assistant professor of physics at UMD, bumped into Adrian Chapman, then a postdoctoral fellow at the University of Sydney, at a quantum information conference. Although ...

Optics & Photonics Oct 21, 2022

Single-phonon readout and ground-state cooling with trapped electron brings quantum computing one step closer

Quantum computers are powerful computational devices that rely on quantum mechanics, or the science of how particles like electrons and atoms interact with the world around them. These devices could potentially be used to ...

Quantum Physics Oct 13, 2022

A molecular multi-qubit model system for quantum computing

Molecules could make useful systems for quantum computers, but they must contain individually addressable, interacting quantum bit centers. In the journal Angewandte Chemie, a team of researchers has now presented a molecular ...

Superconductivity Oct 13, 2022

Physicists reach qubit computing breakthrough

Researchers from Arizona State University and Zhejiang University in China, along with two theorists from the United Kingdom, have been able to demonstrate for the first time that large numbers of quantum bits, or qubits, ...

Condensed Matter Oct 13, 2022

Quantum computers in action in chemistry

Quantum computers are one of the key future technologies of the 21st century. Their potential surpasses even the best supercomputers. They have proven to be a powerful tool, in particular for solving complex computational ...

Superconductivity Oct 10, 2022

The coherent simulation of a quantum phase transition in a programmable 2,000 qubit Ising chain

Quantum computers have the potential to outperform classical computers on several complex tasks, yet many challenges will need to be overcome before they reach their full potential. In the meantime, physicists and computer ...

Quantum Physics Oct 6, 2022

In race toward quantum computing, North Carolina takes center stage

In the 1950s, computers were bulky, inefficient and limited. They ate up entire rooms but couldn't go beyond rudimentary calculations.

Quantum Physics Oct 6, 2022

Boron nitride with a twist could lead to a new way to make qubits

Achieving scalability in quantum processors, sensors, and networks requires novel devices that are easily manipulated between two quantum states. A team led by researchers from the Department of Energy's Lawrence Berkeley ...

Quantum Physics Sep 30, 2022

For the longest time: Quantum computing engineers set new standard in silicon chip performance

Two milliseconds—or two thousandths of a second—is an extraordinarily long time in the world of quantum computing. On these timescales the blink of an eye—at one 10th of a second—is like an eternity.

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