Optical quantum computer startup OptQC has secured NTT investment targeting one million qubits by fiscal 2030. OptQC's ...

For years, quantum computing sat in the same category as nuclear fusion. It was always promising, always fascinating, and always just far enough away that investors could safely ignore it. One of the ...

The approach is known for high accuracy, but scaling it up while preserving that accuracy is technically difficult. Helios uses barium ions in what is called a quantum charge-coupled device, or QCCD, ...

Artificial intelligence has dominated the technology conversation for years, but Quantum computing has not, at least not yet, ...

The truth is less dramatic. There are three ways that AI and quantum computers overlap: first, in the problems they try to ...

Quantum-safe encryption at 1.6 terabits per second is now live on a US commercial fiber network: Quantum Corridor, Ciena, and ...

Scientists have taken another major step toward creating stable quantum computers. Using a specialized quantum computer chip (an essential component of a quantum computer) as a kind of tiny laboratory ...

If the goal is to make quantum systems act like powerful classical machines, then today’s quantum computers may be too ...

IBM and collaborators say their quantum computers outperform all known classical algorithms for three distinct tasks, but ...

When it comes to the tech sector, most of the market's attention (and capital) so far in 2026 has gone toward artificial intelligence (AI) -- the makers of chips, networking tools, the electricity to ...

The Pentagon spent US$151 million on quantum computing. Investors who chased those headlines probably wish they hadn’t. Quantum computing occupies a strange place in the investing universe. The ...