entangled dot cloud
MIT engineers develop a magnetic transistor for more energy-efficient electronics
Transistors, the building blocks of modern electronics, are typically made of silicon. Because it’s a semiconductor, this material can control the flow of electricity in a circuit. But silicon has fundamental physical limits that restrict how compact and energy-efficient a transistor can be.MIT researchers have now replaced silicon with a magnetic semiconductor, creating a magnetic transistor that could enable smaller, faster, and more energy-efficient circuits. The material’s magnetism strongly
Can RGTI's 108-qubit Cepheus launch accelerate quantum advantage push?
Rigetti Computing RGTI recently announced the general availability of its 108-qubit quantum system, Cepheus-1-108Q, marking a ...
Printed Neurons That Mimic Brain Cells Could Slash AI’s Energy Bill
New artificial neurons fire so realistically they can activate living brain cells in mouse tissue. As AI demands ever more power, researchers are looking to the brain for more efficient ways to process information. A new approach uses soft, flexible electronics to create artificial neurons that can mimic biological signaling and even directly interface with living neural tissue.Researchers have long attempted to create so-called “neuromorphic” chips made of artificial neurons that mimic the spik
Could the mathematical 'shape' of the universe solve the cosmological constant problem?
The cosmological constant is the mathematical description of the energy that drives the ever-accelerating expansion of the cosmos. It's also the source of one of the most enduring and confounding problems in modern physics.
Why ultrashort laser pulses could make low-power electron sources far more practical
A new theoretical study finds shorter laser pulses achieve higher quantum efficiency for photoemission from a solid surface without increasing power or intensity. Using light to knock electrons loose from a surface—known as photoemission—may soon be achievable more easily in smaller labs with smaller lasers. Shortening the length of a laser pulse can increase the emitted electrons by several orders of magnitude without increasing the laser intensity or power, according to a University of Michiga
Quantum gas resists heating under periodic kicks, revealing many-body localization mechanism
A joint theoretical study by the University of Innsbruck and Zhejiang University has uncovered the microscopic origin of a striking quantum phenomenon: a periodically driven gas of ultracold atoms that simply refuses to heat up, defying classical expectations.
Two paths to scalable quantum computing: Optical links between fridges and higher-temperature qubits
Superconducting qubits—bits of quantum information—have been widely considered a promising technology for moving quantum computing forward. But there's still much work to be done before they can be brought out of a near absolute zero temperature environment. The lab of Professor Hong Tang has recently published two studies that advance the technology.
World's largest collection of Olympiad-level math problems now available to everyone
Every year, the countries competing in the International Mathematical Olympiad arrive with a booklet of their best, most original problems. Those booklets get shared among delegations, then quietly disappear. No one had ever collected them systematically, cleaned them, and made them available—not for AI researchers testing the limits of mathematical reasoning, and not for the students around the world training for these competitions largely on their own.
Daily briefing: Is a nine-to-five PhD possible?
<p>Nature, Published online: 17 April 2026; <a href="https://www.nature.com/articles/d41586-026-01280-7">doi:10.1038/d41586-026-01280-7</a></p>PhD students share how they make their doctorate fit into the hours of a standard working week. Plus, male and female brain cells differ in gene activity and a whole new way to produce DNA.
Bringing quantum time into the lab—a single clock can run young and old at once
Few concepts in physics are as familiar, yet as enigmatic, as time. In Einstein's theory of relativity, time is not absolute: its passage depends on motion and gravity. But when combined with quantum physics, this relativistic form of time becomes even more counterintuitive.
A long-sought quantum computing milestone arrives as fermionic atom gates top 99% accuracy
Two independent research teams have each demonstrated collisional quantum gates using fermionic atoms: a long-sought milestone in quantum computing where logic operations are performed through the direct physical overlap of atoms, rather than forcing them into fragile, highly excited states.
Smart cable sharing gives quantum computers a big boost
A major obstacle in the development of powerful quantum computers is the growing number of cables required to control a ...
IBM proposes 511,710 square feet of new buildings at Quantum computing facility
Armonk-based IBM wants to expand its Quantum computer facilities on its campus on South Road in the Town of Poughkeepsie by constructing approximately 511,710 square feet of new buildings. The 395-acre campus already has about 45 buildings containing more than 4-million square feet of space. The new construction would take place on the site of an unused parking lot and within the footprint of two existing buildings that would be demolished.
Quantum computers could usher in a crisis worse than Y2K
The day when a quantum computer manages to break common encryption, or Q-Day, is fast approaching, and the world is not close to being ready
France links Lucy photonic quantum system to Joliot-Curie supercomputer
On April 14, 2026, France switched on Lucy, a photonic quantum computer now physically connected to the Joliot-Curie ...
Why your company will never scale (or maybe why it will)
We’re in a copied world. Today, it is so incredibly easy for someone to see what you’re doing and copy your product.
So the question is: How do you actually scale your business to the next level? How do you move past being just a "product" and become a trend, or a brand that you actually dream of?
I believe it comes down to two things: User Laziness and Competitor Laziness1. Making the user too lazy to switch:When you look at Apple, it’s the perfect example. People switch to Apple beca
Observability Stack – AI First?
So... I'm way behind. Just got into Claude this week... it's already doing most of my coding and bug fixes. Crazy stuff.Some background on my company: Mature (14 yrs) Ruby on Rails app, Sidekiq, Redis, PG, AWS lambda/eventbridge, react/preact, swift, and others. Hosted on Heroku. Very database heavy. Solo guy, owner/operator.Current stack:Datadog logging (dabbled in APM, metrics, and others, but the build pack for Heroku is so bloated I had to remove it), so now it'
Show HN: Sostactic – polynomial inequalities using sums-of-squares in Lean
Current support for nonlinear inequalities in Lean is quite limited. This package attempts to solve this. It contains a collection of Lean4 tactics for proving polynomial inequalities via sum-of-squares (SOS) decompositions, powered by a Python backend. You can use it via Python or Lean.These tactics are significantly more powerful than `nlinarith` and `positivity` -- i.e., they can prove inequalities they cannot. In theory, they can be used to prove any of the following types of statements- pro
Ask HN: Has zooming out helped you deal with AI anxiety?
My weird little aha moment came from an HN thread about moon dust smelling like gunpowder.I recently moved to the Bay and have noticed a lot of AI anxiety in everyday conversation.I'm in my early 20s, work in tech but not as an engineer, and a few friends have asked why I don't seem that anxious about it. I didn't have a good answer until yesterday.Oddly, the answer came from an HN thread about moon dust smelling like gunpowder. The thread drifted into oxygen, reactivity, Mars, an
Show HN: Yojam – Route links to the right browser/profile, strip trackers first
Author here. Yojam sits in place of your default browser on macOS and intercepts every http/https click, mailto, .webloc, Handoff page, AirDrop link, Share menu item, and yojam:// URL. They all go through the same pipeline: global URL rewrites, tracker parameter stripping, rule matching (domain / prefix / regex / source app), per-browser rewrites, then either open or show a picker at the cursor.
Things I cared about that other pickers don't quite get right:- Br