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
Brain–machine interface reveals the origin of a widely used neural signal
Nature, Published online: 15 April 2026; doi:10.1038/d41586-026-01189-1A type of activity in the brain’s cortex, called high gamma, is widely used in studies of brain function, but its origin has long been debated. An experiment using a brain–machine interface now shows that high-gamma activity is generated mainly by synchronized neuronal inputs, rather than outputs, which has implications for the interpretation of neuroscientific studies.
Revealed: how male and female brain cells differ in gene activity
<p>Nature, Published online: 16 April 2026; <a href="https://www.nature.com/articles/d41586-026-01227-y">doi:10.1038/d41586-026-01227-y</a></p>Variations in gene expression could help to explain why brain-disease risks differ according to sex.
Industries Most Exposed to AI Are Not Only Seeing Productivity Gains but Jobs and Wage Growth Too
New technologies rarely leave work untouched. They also rarely eliminate the need for human contribution altogether. Forecasts of the impact of artificial intelligence range from the apocalyptic to the utopian. An October 2025 report from Senate Democrats, for example, predicted AI will destroy millions of US jobs. A couple of years earlier, consultant company McKinsey forecast AI will add trillions to the global economy, while emphasizing job losses can be mitigated by training workers to do ne
Laser method unlocks 3,000-Kelvin thin-film synthesis for quantum materials
Thin films might not come up in conversation every day, but they are all around us. Take the metallic plastic films of chip bags, for example, or the anti-reflective coatings on eyeglasses. Even the coatings on pills that make them easier to swallow are thin films. Depositing extremely thin layers of materials in a consistent and uniform way is also crucial to the production of semiconductors, which are the foundation of modern electronics.
Quantum Fourier transform reaches 52 qubits, shattering the previous 27-qubit record
The spin-off company ParityQC has implemented the largest quantum Fourier transform ever reported using an IBM quantum computer, thereby setting a new milestone on the path toward the industrial application of quantum computers. The quantum Fourier transform is a cornerstone algorithm with applications in cryptography, financial modeling, and materials science.
Does gravity follow the rules of quantum mechanics?
A key question in physics is whether gravity follows quantum rules, but testing this is difficult because gravitational ...
IonQ advances quantum networking ambitions with DARPA backing, remote entanglement demo
IonQ Inc. IONQ shares are up during Wednesday’s premarket session as the company was selected for DARPA’s Heterogeneous ...
IonQ Achieves Key Photonic Interconnect Milestone, Demonstrating Networked Quantum Systems Using Entanglement
COLLEGE PARK, Md., April 14, 2026--IonQ (NYSE: IONQ), the leading quantum company, today announced it has achieved a foundational technical milestone by photonically interconnecting two independent trapped-ion quantum systems. This achievement marks the first demonstration of connected, commercial quantum computers, a critical step toward scaling quantum computation beyond a single processor.
What if Time at the subatomic level has multiple arrows?
I’ve been wondering about one thing: what if the electron isn't "blurred" in space, but simply distributed across an infinite number of time-arrows simultaneously?
Is it possible that quantum superposition is merely an observational effect of viewing such a multi-vector system from the perspective of our single timeline?
And if so, wouldn't superconductivity become a problem of temporal synchronization rather than thermodynamics?
— MultiLineArtist
Show HN: ILTY – AI mental health companion that does not pat your back
Hey HN. My wife and I built ILTY because we both needed it for different reasons. My wife deals with anxiety. I have a fairly advanced case of procrastination and I kinda low-key feel too comfortable in my life so I cant quite make myself move.We tried the apps. Calm felt like homework and ChatGPT mostly tells how awesome we are and we need to love ourselves like we are, cant agree with that too muchSo we built what we actually wanted, tested with ~50 beta testers and felt good about publishing
Show HN: I built an AI music tagger for DJs, fusing metadata, audio DSP, and ML
Built this for myself. I DJ, throw parties in Portland, and my digital library is 10k tracks and unmanageable. Tagging everything was a nonstarter.Project started as a Python script that fed track metadata into ChatGPT. Worked surprisingly well for something so basic. Friends kept asking me to run their libraries through it, and eventually I built a real app around it.The core insight: no single signal is enough. Metadata lookups miss obscure tracks. Audio analysis alone lacks context. LLMs alon
Show HN: Lazyagent – TUI for to watch all your AI coding agents
Running multiple coding agents could make user losing track of what they were doing. Once subagents start spawning other subagents, basic questions get hard to answer: what is running right now, what tool did it just call, did the child agent actually do what the parent asked.Lazyagent is a terminal TUI that collects events from Claude Code, Codex, and OpenCode and shows them in one place.
It groups sessions from different runtimes by working directory, so Claude and Codex runs on the same repo
Show HN: Springdrift – A persistent runtime for long-lived LLM agents
I wanted to share something that I have been working on since about 2019, in one form or another. Springdrift is a persistent, auditable runtime for long-lived agents written in Gleam on the BEAM. It is my attempt at filling in some of the gaps in agent development. It is designed to do all the things an agent like Openclaw can do (and more eventually), but it can diagnose its own errors and failures. It has a sophisticated safety metacognition system. It has a character that should not drift.
Tell HN: Qwen Free Tier Is Discontinued
I kept getting 401 'token expired' errors on my existing Qwen session. Attempting to resume it after quitting, I got: qwen resume
[API Error: 401 invalid access token or token expired]
[API Error: 401 invalid access token or token expired][API Error: [API Error: 401 invalid access token or token expired]]
An unexpected critical error occurred:
Error: [API Error: 401 invalid access token or token expired]
at file:/&
Show HN: Using Telegram as an indexed system for geo-notes
I was trying to solve a pretty simple problem: how to keep geo-notes organized and actually usable without building a multi-level UI.
Instead of building another app, I started wondering if Telegram — with its search and message model — could handle more than it seems at first glance.
At some point, I approached the problem from a very simple angle:
What if a location could be treated as a tag?
Not just a generic label, but something more concrete — essentially latitude and longitude encoded int
Stephen Hawking's black hole information paradox could be solved — if the universe has 7 dimensions
Stephen Hawking's theory of black hole evaporation clashes with the laws of quantum mechanics. A new paper finds a way around this paradox, provided that the universe has seven dimensions.
Fool’s gold isn’t so foolish: Scientists find hidden treasure in pyrite
Researchers have discovered lithium hidden in pyrite within ancient shale rocks—an unexpected find that could reshape how we source this critical battery material. It raises the possibility of extracting lithium from existing waste, reducing the need for new mining.
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.