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An AI Learned to Write Quantum Circuits, Then Outdid Its Teacher
Quantum Technology

An AI Learned to Write Quantum Circuits, Then Outdid Its Teacher

Before a quantum computer can tell you anything useful about a molecule, it has to be coaxed into a state...
Sound Could Carry Quantum Signals Across a Whole Chip - On Paper
Quantum Technology

Sound Could Carry Quantum Signals Across a Whole Chip – On Paper

Here’s a small, stubborn problem at the heart of building a big quantum computer. The qubits can usually only talk...
The Quantum Neural Network That Refuses to Go Flat
Quantum Technology

The Quantum Neural Network That Refuses to Go Flat

Quantum machine learning has a cruel little paradox at its heart. Build a quantum model simple enough to train reliably,...
An Atom That Refuses to Settle Down, and Why That Helps
Quantum Technology

An Atom That Refuses to Settle Down, and Why That Helps

Atoms aren’t famous for their patience. Nudge an electron up to a high energy level and it usually tumbles back...
Scientists Designed a Promising New Qubit. It Only Exists in Simulation
Quantum Technology

Scientists Designed a Promising New Qubit. It Only Exists in Simulation

Imagine ordering a custom part from a factory, except the factory is a supercomputer and the part is a single...
Entangled Photons Survived a Fiber Stuffed With Internet Traffic
Quantum Technology

Entangled Photons Survived a Fiber Stuffed With Internet Traffic

Picture a single ant trying to walk a road as a herd of elephants stampedes down it. Those are the...
The Problem Where Teaching an AI Something New Makes It Forget the Old Thing
Quantum Technology

Quantum Elastic Weight Consolidation Solves The Problem Where Teaching an AI Something New Makes It Forget the Old Thing

Here’s a failure mode that will feel uncomfortably familiar. You cram for one exam, ace it, then cram for the...
Physicists Built a Waffle, and It Might Be Important for Quantum Computing
Quantum Technology

Physicists Built a Waffle, and It Might Be Important for Quantum Computing

Almost every superconducting quantum computer you have heard of is flat. IBM’s, Google’s, the lot. Josephson junctions sit on a...
Quantum Computing Runs on Helium-3, and Most of It Comes From Old Weapons Stockpiles
Quantum Technology

Quantum Computing Runs on Helium-3, and Most of It Comes From Old Weapons Stockpiles

Here’s a supply chain nobody puts on a slide. Superconducting quantum computers have to be chilled to a hair above...
A Ribbon Nine Atoms Wide That Snitches on Radiation
Quantum Technology

A Ribbon Nine Atoms Wide That Snitches on Radiation

Here’s a design problem that sounds impossible. You need a sensor that sits in one of the most hostile places...