Vertical quantum sensor could reveal nanoscale magnetic patterns in quantum materials

Quantum Technology

AI-rewritten: This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.

Phys.org • September 24, 2026

Researchers at the University of Twente have developed a vertical quantum sensor designed to reveal nanoscale magnetic patterns in quantum materials. Quantum materials conduct electricity without loss or only along their edges, but existing sensors struggle because magnetic fields weaken quickly with distance. When a sensor lies flat on a chip, the rest of the device keeps it several micrometers away from the material, causing detail to be lost. To solve this, the team placed the sensor on top of a pyramid made of silicon, allowing it to get extremely close to the surface for imaging.

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Higher-dimensional black holes hide an exact symmetry in their ringing, and string-inspired gravity breaks it

Quantum Technology

AI-rewritten: This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.

Phys.org • September 24, 2026

Physicists have discovered that certain black holes in higher dimensions possess an exact symmetry where two very different types of waves ring at identical frequencies. The researchers, Davide Batić and Denys Dutykh from Khalifa University in Abu Dhabi, studied nonrotating black holes ranging from five to 26 dimensions. They examined disturbances caused by a scalar field, which acts like a spherical breathing motion, and a dipole twist of spacetime itself. In every dimension from five upward, these two distinct waves produce the same tones, including overtones, provided the Gauss–Bonnet term is not active.

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Cosmic lockdown: How the environment can isolate quantum fields

Quantum Technology

AI-rewritten: This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.

Phys.org • September 25, 2026

A simplified cosmological model suggests that interactions with the environment can suppress quantum tunneling, effectively locking fields into the vacuum state they have reached. In cosmology, a vacuum is not empty space but a state where a field sits at a minimum of its energy. There can be local minima called false vacua and a deeper true vacuum. A field trapped in a shallower valley might remain there even if a lower-energy state exists elsewhere.

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Random access quantum memory lets one processor select among seven storage cells

Quantum Technology

AI-rewritten: This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.

Phys.org • September 25, 2026

Classical computers use random access memory (RAM) to let processors retrieve data from specific locations without searching through everything stored. Most superconductor-based quantum computers lack this feature because they currently rely on the same hardware for both processing and storage. To solve this, researchers at Stanford University, the University of Chicago, and SLAC National Accelerator Laboratory designed a new device that acts as random access quantum memory. This design allows a single processor to select among seven separate storage cells without needing individual wiring for each one.

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New parallel gate entangles diamond qubits 10 times faster at room temperature

Quantum Technology

AI-rewritten: This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.

Phys.org • October 1, 2026

Researchers at the University of Pennsylvania have developed a method to entangle diamond qubits ten times faster than previous techniques while operating at room temperature. The study, published in *Nature Nanotechnology*, focuses on nitrogen-vacancy centers, which are tiny defects in diamond where a nitrogen atom sits next to a missing carbon atom. These systems typically use an electron at the defect and nearby carbon-13 nuclei as qubits.

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New method generates nearly indistinguishable photons for quantum communication

Quantum Technology

AI-rewritten: This is a summary of an article from Phys.org, rewritten by AI (Qwen, running locally) to make it easier to read. The facts come from the original article – read it for the full story.

Phys.org • October 1, 2026

Researchers from Paderborn University, the University of Basel, and Ruhr University Bochum have developed a new method to generate nearly indistinguishable photons for quantum communication. Published in *Physical Review Letters*, their work uses special semiconductor nanostructures called quantum dots within an optical resonator. This setup accelerates a process known as "biexciton decay," where a molecule containing two bound excitons decays to produce two photons one after another.

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