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Other Mar 30, 2024

Saturday Citations: 100-year-old milk, hot qubits and another banger from the Event Horizon Telescope project

Is the milk sold today similar to the milk available 100 years ago? Here, drink this and give me your results. Also, physicists achieve superconductivity at a temperature slightly higher than 0 degrees Kelvin and slightly ...

Superconductivity Feb 12, 2024

Flowermon: A superconducting qubit based on twisted cuprate van der Waals heterostructures

Quantum technology could outperform conventional computers on some advanced optimization and computational tasks. In recent years, physicists have been working to identify new strategies to create quantum systems and promising ...

Superconductivity Feb 5, 2024

Research offer direct view of tantalum oxidation that impedes qubit coherence

Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory and DOE's Pacific Northwest National Laboratory (PNNL) have used a combination of scanning transmission electron microscopy (STEM) and computational ...

Nanophysics Feb 5, 2024

Magnesium protects tantalum, a promising material for making qubits

Scientists at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory have discovered that adding a layer of magnesium improves the properties of tantalum, a superconducting material that shows great promise ...

Nanophysics Jan 18, 2024

Scientists create qubits using precision tools of nanotechnology

Silicon carbide is becoming a major player on the quantum scene. Widely used in specialized electronics goods such as LEDs and electric vehicles, silicon carbide boasts versatility, wide commercial availability, and growing ...

Condensed Matter Oct 2, 2023

Simulations reveal the atomic-scale story of qubits

Researchers led by Giulia Galli at University of Chicago's Pritzker School of Molecular Engineering report a computational study that predicts the conditions to create specific spin defects in silicon carbide. Their findings, ...

Condensed Matter Jul 27, 2023

Tailoring quantum oscillations of a Bose-Einstein condensate of excitons as qubits

What plagues quantum upscaling? Most quantum computing devices are dependent on using complex physical phenomena that are either very short-lived (~10-12 seconds) and/or only survive at ultra-low temperatures (e.g., 10-3 ...

Quantum Physics May 17, 2023

Team demonstrates quantum advantage on optimization problems with a 5,000-qubit programmable spin glass

Over the past decades, researchers and companies worldwide have been trying to develop increasingly advanced quantum computers. The key objective of their efforts is to create systems that will outperform classical computers ...

Condensed Matter May 8, 2023

Symmetric graphene quantum dots for future qubits

Quantum dots in semiconductors such as silicon or gallium arsenide have long been considered hot candidates for hosting quantum bits in future quantum processors. Scientists at Forschungszentrum Jülich and RWTH Aachen University ...

Optics & Photonics Feb 8, 2023

Toward practical quantum optics: Multiphoton qubits from LNOI

Can quantum optics be used for practical applications? A lot depends on whether a large number of photons can be gathered in quantum state.

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