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Quantum Âé¶¹ÒùÔºics 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 ...

Quantum Âé¶¹ÒùÔºics 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 Âé¶¹ÒùÔºics 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 ...

Quantum Âé¶¹ÒùÔºics 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.

Quantum Âé¶¹ÒùÔºics Jan 19, 2022

Enhancing simulations of curved space with qubits

One of the mind-bending ideas that physicists and mathematicians have come up with is that space itself—not just objects in space—can be curved. When space curves (as happens dramatically near a black hole), sizes and ...

Nanophysics Jan 18, 2022

Mini electricity generator made from quantum dots

Machines and electronic devices often generate waste heat that is difficult to utilize. If electricity could be generated from this waste heat, it would offer a means for a clean and sustainable power production: Such a technology ...

Optics & Photonics Jan 5, 2022

Suppressing the Auger recombination process in quantum dots

A Quantum Dot (QD) is a nanometer-sized semiconductor nanocrystal that has unique optical properties such as the ability to emit light in the range of optical frequencies depending on its size. QDs have already been applied ...

Optics & Photonics Jan 4, 2022

Ultrafast imaging of terahertz electric waveforms using quantum dots

Microscopic electric fields govern a remarkable variety of phenomena in condensed matter and their ultrafast evolutions drive plasmonics, phononics and highspeed nanoelectronics. Access to high-frequency electric waveforms ...

Optics & Photonics Dec 21, 2021

An entirely new way of preparing quantum systems to develop components for quantum technology

After the "first quantum revolution"—the development of devices such as lasers and the atomic clock—the "second quantum revolution" is currently in full swing. Experts from all over the world are developing fundamentally ...

Analytical Chemistry Dec 20, 2021

An aptasensor has been designed to detect the SARS-CoV-2 virus in saliva

Scientists at the Universidad Carlos III de Madrid (UC3M) have developed the first photo-electrochemical aptasensor that detects the SARS-CoV-2 virus in a saliva sample. This sensor, which uses aptamers (a type of artificial ...

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