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
Spatiotemporal light pulses could secure optical communication by masking data
Researchers at Ben-Gurion University of the Negev have developed a new approach to secure optical communication that hides information in the physical structure of light, making it difficult for unauthorized parties to intercept or decode. The study addresses a growing challenge: advances in quantum computing are expected to weaken many of today's encryption methods. While most security solutions rely on complex mathematical algorithms, this research adds protection earlier in the process—during
Pixelated quantum-dot superlattice LEDs
<p>Nature, Published online: 15 April 2026; <a href="https://www.nature.com/articles/s41586-026-10392-z">doi:10.1038/s41586-026-10392-z</a></p>Scalable fabrication of ordered perovskite quantum dot superlattices enables high-efficiency, ultrahigh-resolution LEDs and active-matrix displays with greatly improved brightness, stability and device lifetime.
Quantum-inspired algorithm solves 268 million-site quasicrystal simulation in a heartbeat
Quantum technologies like quantum computers are built from quantum materials. These types of materials exhibit quantum properties when exposed to the right conditions. Curiously, engineers can also trigger quantum behavior by manipulating a material's structure; for example, by stacking layers of graphene on top of each other and twisting them to create a moiré pattern, which suddenly turns them into a superconductor.
What is 'World Quantum Day?' Google Doodle April 14 explained
The latest "Google Doodle" to adorn the Google search engine home page is celebrating achievements in quantum physics - and ...
Curious about quantum? Check out training options from ISC2, IBM, AWS and more
ISC2 released a 30-minute primer on the cybersecurity implications of quantum computing. If you want to dig deeper, there are many quantum training options that don't require going back to school for a PhD.
Multitasking quantum sensors can measure several properties at once
A special class of sensors leverages quantum properties to measure tiny signals at levels that would be impossible using ...
University of Arkansas names quantum physicist as interim director of research institute
The University of Arkansas has named an interim director to lead its Institute for Integrative and Innovative Research (I³R), following founding director Ranu Jung stepping down last month.
That ‘quantum heartbeat detector’ allegedly used to find the lost US pilot? Experts are skeptical
A story claims a revolutionary skunk works built a quantum sensor that was used to locate a missing airman by reading his pulse from 40 miles away. But physicists say the laws of biomagnetism make ...
Scientists Make Breakthrough on 40-Year-Old 2D Physics Puzzle
By manipulating ultrafast quantum particles under extreme conditions, researchers have begun to probe growth dynamics in unprecedented detail. Why do patterns emerge as surfaces grow, whether in ...
What is the Planck constant? The tiny number behind World Quantum Day and the kilogram
Google's latest Doodle highlights quantum physics, showcasing the Bloch sphere and qubits. This celebrates World Quantum Day, ...
‘Fearless’ graduate students are forging a new quantum frontier
The Princeton Quantum Initiative’s Ph.D. program is helping pioneer a field that promises to define the next era of discovery and innovation.
What is World Quantum Day? Why April 14 matters
World Quantum Day 2026, which takes place on April 14, is a global celebration all about recognizing how quantum science and ...
Show HN: A book that builds GPT-2, Llama 3, DeepSeek from scratch in PyTorch
I'm a software engineer who works with LLMs professionally (Forward Deployed Engineer at TrueFoundry). Over the past year I built up implementations of five LLM architectures from scratch and wrote a book around them.The progression:- Ch1: Vanilla encoder-decoder transformer (English to Hindi translation)
- Ch2: GPT-2 124M from scratch, loads real OpenAI pretrained weights
- Ch3: Llama 3.2-3B by swapping 4 components of GPT-2 (LayerNorm to RMSNorm, learned PE to RoPE, GELU to SwiGLU, MHA to
Show HN: Why Rotating Vectors Makes Compression Beautiful
I've been intrigued about how quantization works. I went down a rabbit hole to understand the pieces and came out the other side with some genuinely surprising findings
Quantum simulations reveal spin transport in 1D materials
Researchers from the Department of Energy's Quantum Science Center (QSC) headquartered at Oak Ridge National Laboratory (ORNL) have achieved a significant milestone by demonstrating the first digital quantum simulations of how spin currents change over time in a 1-D model of a quantum spin material. The results, now published in Physical Review Letters, establish a new, programmable way to use quantum computers to study the transport of spin—a fundamental quantum variable—in materials.
MIT faculty, alumni receive 2025-26 American Physical Society honors
The American Physical Society (APS) recently honored two MIT faculty members — professors Yoel Fink PhD ’00 and Mehran Kardar PhD ’83 — as well as six alumni with prizes and awards for their contributions to physics and academic leadership.In addition, several MIT faculty members — Professor Jorn Dunkel, Professor Yen-Jie Lee PhD ’11, Associate Professor Mingda Li PhD ’15, and Associate Professor Julien Tailleur — as well as 12 additional alumni were named APS Fellows.Yoel Fink PhD ’00, the Dana
Any color you like: Scientists create 'any wavelength' lasers in tiny circuits for light
Computer chips that cram billions of electronic devices into a few square inches have powered the digital economy and transformed the world. Scientists may be on the cusp of launching a similar technological revolution—this time using light.
Multitasking quantum sensors can measure several properties at once
A special class of sensors leverages quantum properties to measure tiny signals at levels that would be impossible using classical sensors alone. Such quantum sensors are currently being used to study the inner workings of cells and the outer depths of our universe.
Scientists think alien life might be hiding in patterns
A new study proposes detecting life in space by spotting patterns across many planets instead of focusing on one at a time. If life spreads and changes planetary environments, it could leave behind statistical clues linking planets together. These patterns may reveal life even when traditional biosignatures are unclear or misleading. The method could help scientists prioritize which planets are most likely to host life.