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

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: 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: 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: 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.

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 ...

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.

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 ...