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

Enough with all the world-historic milestones

Whatever you’ve been writing to me to ask if I’m aware of: yeah, I’m aware of it. In particular:I’m aware that, as announced by my former student (and now superstar professor) Lijie Chen, an internal OpenAI model has solved ten more significant open problems in math and theoretical computer science. One of them is parallel repetition for arbitrary quantum games—something that my good friend and colleague Henry Yuen worked on when he was a student of my wife Dana;

Sunlight Generates Quantum Entanglement First Time

Scientists have demonstrated that sunlight, as a natural light source, can generate quantum-entangled photon pairs. With their findings, the ...

'Spooky' particles transit DC suburbs, a step toward a quantum network

In early 2025, special signals wended their way through a fiber-optic highway strung above the streets and sidewalks of the ...

Quantum Entanglement Generated by Sunlight

Scientists have demonstrated that sunlight, as a natural light source, can generate quantum-entangled photon pairs. With ...

Breakthrough: Quantum entanglement generated using sunlight instead of lasers

Researchers at the University of Ottawa in Canada have demonstrated that quantum entanglement between ...

Sunlight-powered setup generates quantum entanglement

Today's quantum technologies rely on energy-intensive lasers, raising concerns that scaling them up could further increase ...

The sun is surprisingly good at quantum mechanics

At the foundation of photonic quantum computing are pairs of light particles. Linked together through a process called ...

Show HN: Merge – AI-native code review assessments for engineering hiring

We’re 5 founders who’ve collectively done over 250 interviews - everywhere from startups to Big Tech to quant shops. Most of the interviews we’ve done were Leetcode based or tested skills that weren’t used on the job.These days, with AI, assessments still continue to test code output. Meanwhile, at each of our companies, though, PR counts have nearly tripled. Most of us haven’t manually edited a line of code in a year.Our teams are putting more and more emphasis on code and architecture reviews,

Show HN: Open-source pixel art editor with animation and auto-tiling tilesets

Hi HN! I built a free pixel art editor that runs entirely in the browser — no install, no signup, no watermark. The frontend is open source (MIT): https://github.com/comficker/simplepixelartWhat it does:- Sprite editor with layers, selections, mirror drawing, and an infinite-canvas workspace (multiple boards on one desk)- Frame-by-frame animation with onion skin, per-frame duration, GIF and spritesheet export- Tileset builder that auto-generates Wang-16 and blob-47 terrain se

Sam Altman Says We’re ‘in the Singularity’ With AI. Here’s Why He’s Wrong.

Today’s AI is neither able to improve itself recursively nor is it intelligent like us. Between prompts it remains a static mathematical object. “We are now, like, in the singularity.”These are the words of Sam Altman, CEO of OpenAI, speaking on the Relentless podcast on July 25.He added: “I’ve been waiting for this my whole life, and I think it’s going to be incredible, hugely positive, awesome for the world.”Days earlier, OpenAI had disclosed that two of its artificial intelligence model

AI found a weakness in one of the world's most studied encryption systems — is your data under threat?

Artificial intelligence (AI) has helped uncover new weaknesses in two cryptographic systems, including a simplified version of the Advanced Encryption Standard (AES) that underpins much of today's internet. While these headline-grabbing findings don't put anyone's passwords or bank accounts at immediate risk, experts say the research could mark the beginning of a new era in which AI becomes a powerful assistant for discovering flaws in the mathematical foundations of

UCLA scientists discover how to guide heat like light at room temperature

Scientists have demonstrated that heat can move through a crystal in focused, wave-like rays at room temperature instead of spreading randomly. The breakthrough could make it possible to route heat around sensitive parts of next-generation chips and quantum devices.

Scientists tracked 12 people in Antarctica for 10 months—what happened could shape future Mars missions

A ten-month Antarctic experiment found that astronauts may struggle not only with loneliness but also with spending too much time around the same people. Frequent contact was linked to greater tension and mistrust, while the crew increasingly divided into cultural and language-based groups.

Vector Quantization and Product Quantization

Using Indices to Represent Vectors In a Finite Set

Physicists watch a material’s electrons assemble, and reassemble, into coexisting phases

A tall glass of ice water isn’t just a thirst quencher; it’s also an everyday example of coexisting phases. Water’s molecular makeup can exist simultaneously in both a liquid and solid phase. And as it turns out, this phase duality can exist in more exotic, quantum materials, and in ways that are far more complicated to tease apart. A new study by MIT physicists sheds light on how two different phases of electron behavior can emerge and coexist in the same quantum material. Their resul

Quantum computers do not test every solution at once

*This is adapted from my live interview session with Sebastian Hassinger, formerly IBM Quantum and AWS Quantum Technologies. Words are his own.Superposition and entanglement get thrown around loosely, and when people ask me which one causes the most trouble, the honest answer is that the biggest problem is not really a misunderstanding of either. It is more of an ambiguity. People say that a quantum computer tests all solutions simultaneously and then selects the right one, and that is not liter

Spin audit of SQD/QSCI quantum-chemistry benchmarks on iron–sulfur clusters

Author here.Background, for anyone who hasn't followed this fight: IBM's iron–sulfur SQD results (Sci. Adv. 2025) are one of the flagship "quantum computers are useful for chemistry now" claims, and a published critique (arXiv:2501.07231) argues the quantum samples never beat classical selected-CI at matched cost. That argument is still live.Both sides have been arguing about energies. Neither measured which electronic state these calculations actually converge to.So I measur

Is IonQ Stock a Buy After This 100-Qubit System Sale?

100 qubits sounds impressive, given that IonQ's most powerful system in 2025 only has 36 qubits. However, 100 physical qubits still can't get much work done. Theoretical research shows that ...

D-Wave Demonstrates Major Hardware Breakthrough for Quantum Error Correction, Advancing the Path to Practical, Fault-Tolerant Gate-Model Quantum Computing

D-Wave Quantum Inc. (Nasdaq: QBTS), (“D-Wave” or the “Company”), the only dual-platform quantum computing company providing ...