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A Micro Center customer who bought an RTX 5090 in Tustin, California, was required to sign an Advanced Computing Product Purchaser Declaration form, which bars exporting the GPU, before being approved to purchase the GPU.
Excerpt: The opening of an article from Tom’s Hardware. Read the original for the full story.
Micron released its fiscal Q4 2026 financial results on Wednesday, expectedly setting another record for revenue with $54.23 billion for the quarter, up nearly five times since the same period last year. Micron also hit a record 87% gross margin, the largest contributor to which was Micron’s Mobile and Client (consumer) business unit. Further, Micron’s client business was the only one that shipped less memory last quarter, despite bringing in the highest operating margin at 88%.
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We’re leading up to the biggest sales season of the year, and we’re already seeing a large selection of discounts across the board, especially on Amazon. If you’re a content creator, streamer, or even a productivity master or coder, then you’re fully aware of shortcuts and macro pads. One of the most popular brands in this space is the Elgato Stream Deck, and today, you can pick up the largest of these macro pads with a stunning 20% discount. The Elgato Stream Deck XL is reduced to $199.99 from its original $249.95 list price.
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.
Twistronics has emerged as a new field where researchers stack atomically thin material layers at specific angles to create electronic behaviors absent in the original ingredients. This approach has already produced superconductivity and fractional Chern insulators, states featuring fractionally charged excitations. A recent international collaboration published two papers in *Science* on September 24 to map these possibilities. The first study analyzed 8,872 entries from computational databases to identify 4,073 materials with nontrivial topology or an obstructed atomic limit. B. Andrei Bernevig of Princeton University explained that every new family of twisted materials offers a chance to ask different questions about quantum matter beyond the few platforms currently known.
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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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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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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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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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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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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.