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Superconductivity Feb 24, 2022

Open sourced control hardware for quantum computers

The Advanced Quantum Testbed (AQT) at Lawrence Berkeley National Laboratory (Berkeley Lab) has open sourced a new electronics control and measurement system for superconducting quantum processors, making the engineering solutions ...

Quantum Physics Feb 24, 2022

Cutting through the noise to increase error mitigation in quantum computers

A collaboration between Lawrence Berkeley National Laboratory's (Berkeley Lab's) Applied Mathematics and Computational Research Division (AMCRD) and Physics Division has yielded a new approach to error mitigation that could ...

Quantum Physics Feb 14, 2022

What's inside a black hole? Physicist uses quantum computing, machine learning to find out

Dude, what if everything around us was just ... a hologram?

Quantum Physics Jan 31, 2022

A new method for quantum computing

Physicists from the University of Amsterdam have proposed a new architecture for a scalable quantum computer. Making use of the collective motion of the constituent particles, they were able to construct new building blocks ...

Quantum Physics Jan 26, 2022

Scientists simulate 'fingerprint' of noise on quantum computer

For humans, background noise is generally just a minor irritant. But for quantum computers, which are very sensitive, it can be a death knell for computations. And because "noise" for a quantum computer increases as the computer ...

Quantum Physics Jan 25, 2022

How big does your quantum computer need to be?

Quantum computers are expected to be disruptive and potentially impact many industry sectors. So researchers in the United Kingdom and the Netherlands decided to explore two very different quantum problems: breaking the encryption ...

Quantum Physics Jan 20, 2022

Towards compact quantum computers thanks to topology

Researchers at PSI have compared the electron distribution below the oxide layer of two semiconductors. The investigation is part of an effort to develop particularly stable quantum bits—and thus, in turn, particularly efficient ...

Quantum Physics Jan 19, 2022

Semiconductor spin qubits gain further credibility as leading platform for quantum computing

Researchers at QuTech—a collaboration between the Delft University of Technology and TNO—have taken an important step for semiconductor spin qubits by surpassing the 99% barrier for two-qubit gate fidelity. They report on ...

Quantum Physics Jan 19, 2022

Gate set tomography: How physicists are revealing the inner workings of quantum computers

A precision diagnostic developed at the Department of Energy's Sandia National Laboratories is emerging as a gold standard for detecting and describing problems inside quantum computing hardware.

Quantum Physics Jan 19, 2022

Scientists achieve key elements for fault-tolerant quantum computation in silicon spin qubits

Researchers from RIKEN and QuTech—a collaboration between TU Delft and the Netherlands Organisation for Applied Scientific Research (TNO)— have achieved a key milestone toward the development of a fault-tolerant quantum computer. ...

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