Quantum sensor based on silicon carbide qubits operates at room temperature

A quantum sensor based on silicon carbide qubits that operates at room temperature
Illustration of quantum sensing of Gadolinium-complex (an MRI contrast material) by divacancy-related quantum sensor engineered close to the surface of silicon carbide (SiC) with innovative surface termination (carbon chain). Credit: Pei Li et al.

Over the past decades, physicists and quantum engineers introduced a wide range of systems that perform desired functions leveraging quantum mechanical effects. These include so-called quantum sensors, devices that rely on qubits (i.e., units of quantum information) to detect weak magnetic or electric fields.

Researchers at the HUN-REN Wigner Research Center for Physics, the Beijing Computational Science Research Center, the University of Science and Technology of China and other institutes recently introduced a new quantum sensing platfor...

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Rare high-resolution observations of a flare-prolific solar active region

Mosaics of GREGOR observations in different wavelength bands showing the active region NOAA 14274 at around 08:33 UT on 10 November 2025, about 30 minutes before an X1.2 flare began.
Credit: AIP / C. Denker

Scientists have captured an exceptionally rare, high-resolution view of an active region that produced two powerful X-class solar flares—an achievement rarely possible from Earth. Using the GREGOR solar telescope in Tenerife, researchers recorded the explosive activity of the sun’s most energetic sunspot group of 2025, revealing twisted magnetic structures and the early stages of flare ignition with unprecedented detail. The flares triggered fast coronal mass ejections that lit up Earth’s skies with vivid auroras in the nights that followed.

Challenges of observing solar flares
H...

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Google Quantum AI realizes three dynamic surface code implementations

Google Quantum AI realizes three dynamic surface codes implementations
Credit: Google Quantum AI.

Quantum computers are computing systems that process information leveraging quantum mechanical effects. These computers rely on qubits (i.e., the quantum equivalent of bits), which can store information in a mixture of states, as opposed to binary states (0 or 1).

While quantum computers could tackle some computational and optimization problems faster and more effectively than classical computers, they are also inherently more prone to errors. This is because qubits can be easily disturbed by disturbances from their surrounding environment, also referred to as noise.

Over the past decades, quantum engineers and physicists have been trying to develop approaches to correct noise-related errors, also known as quantum error correction (QEC) techniques...

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Radiowave bursts linked to onset of intense auroral storms

Earth seen from space with a green auroral display blanketing the sky above the planet.
Auroral beads seen from the International Space Station. Credit: NASA

A University of Southampton study has revealed an intriguing new clue in the mystery of what triggers periods of very intense, brightly colored activity during displays of both the southern and northern lights.

Known as a “magnetospheric substorm,” this awe-inspiring phenomenon, which blankets the night sky in green and purple, is almost always preceded by what space scientists call “auroral beads”—a necklace-like wave of multiple luminous points of light which eventually evolve into the storm.

Southampton scientists have now shown there is a link between these auroral beads and the intensity of low frequency radio waves above the aurora in Earth’s magnetosphere—a vast area around our planet that is dominated...

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