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

Ask HN: Can someone reproduce or break this frozen gravity/time/quantum bundle?

I froze a theory/framework I’ve been working on instead of tweaking it further, and put the current version into a replication bundle.What’s in it: - 4 fixed laws - fixed event sets - expected outputs - a separate-environment rerun that matchedI’m not asking anyone to buy into it. I’m asking if someone technical would be willing to reproduce it or point out where it fails.Repo: https://github.com/aadishenoy95/utg-replication-bundleExecutive summary: https://git

Scientists create new type of encryption that protects video files against quantum computing attacks

A newly developed encryption framework aims to protect video data from future quantum attacks, all while running on today's conventional hardware.

Bitcoin quantum threat is real and closer than it looks, says Nobel physicist

Google quantum pioneer says encryption-breaking use cases may arrive sooner than expected, urging crypto industry to prepare now ...

Electron–atom scattering encodes the quantum state of electron wave packets

A new analysis reveals what happens when very short or narrow electron beams encounter a particle. The research is published ...

Poland’s Galaxy Systemy Informatyczne purchases 54-qubit quantum computer from IQM

Polish IT firm Galaxy Systemy Informatyczne has become the first private company to purchase a quantum computer from IQM ...

Attacking bitcoin mining with a quantum computer would require the energy of a star, academics say

One paper finds that attacking the bitcoin blockchain through quantum mining would demand the energy output of a star. Another replicates every major "quantum factoring breakthrough" using a 1981 home computer and a dog.

Physicists Observe Matter in Two Places at Once in Mind-Bending Quantum Experiment

ANU researchers show that atoms can exhibit quantum entanglement, advancing efforts to unify physics. Quantum physicists at ...

Optical control of nuclear spins in molecules points to new paths for quantum technologies

Researchers at the Karlsruhe Institute of Technology (KIT) have reported important progress in quantum physics and materials ...

Is the ‘Ghost Murmur’ quantum device possible? Scientists are skeptical

Ghost Murmur was described as a futuristic CIA tool that could detect a heartbeat from vast distances. Physicists say the public story clashes with the basic limits of magnetic sensing

Show HN: Embedding Similarity with Confidence Intervals

When Smith writes "value" and Ricardo writes "value," do they mean the same thing? I built a tool that gives a quantitative answer.The tool trains multiple Word2Vec models on each text independently, aligns them into a shared vector space via Generalized Procrustes Analysis, and lets you compute cosine similarity with 95% confidence intervals across the ensemble through an API. First, it lets you compare semantic drift between authors. How does the semantic neighbourhood of &

IBM-backed study claims quantum error correction can cut qubit needs

Researchers backed by IBM have published results showing that a specific class of quantum error-correcting codes can protect ...

Quantum advance cuts qubit needs from 1000 to 5, brings practical computing closer

Scientists at California Institute of Technology and startup Oratomic have developed a method to ...

Rigetti Announces General Availability of 108-Qubit System

The system is currently performing at a 99.1% median two-qubit gate fidelity with a gate speed of ~60 ns and a 99.9% median single-gate fidelity. Rigetti is releasing Cepheus-1-108Q now in response to ...

High-precision calculation of the quark–gluon coupling from lattice QCD

<p>Nature, Published online: 08 April 2026; <a href="https://www.nature.com/articles/s41586-026-10339-4">doi:10.1038/s41586-026-10339-4</a></p>Large-scale lattice quantum chromodynamics simulations enable a model-free, highly precise determination of the strong coupling constant αs, reducing theoretical uncertainty and improving precision tests of particle physics.

Tumour trap: engineered enhancer sequences enlisted to kill cancer cells

<p>Nature, Published online: 08 April 2026; <a href="https://www.nature.com/articles/d41586-026-00812-5">doi:10.1038/d41586-026-00812-5</a></p>New cancer therapies are needed that do not harm healthy tissue. An engineered DNA sequence shows promise as one of the tools in a method to target brain tumour cells.

Population-scale repeat expansions elucidate disease risk and brain atrophy

<p>Nature, Published online: 08 April 2026; <a href="https://www.nature.com/articles/s41586-026-10345-6">doi:10.1038/s41586-026-10345-6</a></p>Decreased brain volumes and increased NfL levels can be observed earlier than disease diagnosis in short-tandem-repeat-associated neurological diseases.

Protected quantum gates using qubit doublons in dynamical optical lattices

<p>Nature, Published online: 08 April 2026; <a href="https://www.nature.com/articles/s41586-026-10285-1">doi:10.1038/s41586-026-10285-1</a></p>A purely geometric two-qubit SWAP gate can be realized by transiently populating qubit doublon states of fermionic atoms in a dynamical optical lattice.

High-fidelity collisional quantum gates with fermionic atoms

<p>Nature, Published online: 08 April 2026; <a href="https://www.nature.com/articles/s41586-026-10356-3">doi:10.1038/s41586-026-10356-3</a></p>A robust composite pair-exchange gate based on controlled interactions of fermionic atoms in an optical superlattice demonstrates high fidelities and long Bell-state lifetimes, marking an important step towards a fully digital fermionic quantum computer.

Robust against noise, geometric-phase swap gates bring stability to quantum operations

Researchers at ETH Zurich have realized particularly stable quantum logical operations with qubits made of neutral atoms. Since these operations, called quantum gates, are based on geometric phases, they are extremely robust against experimental noise and can be used in quantum computers in the future.