IonQ just sold a 100-qubit quantum system to South Korea. Here's why that's not enough to make me buy the stock.

This is allowing IBM to attack quantum computing with two very different chips.

Physicists at Silicon Quantum Computing have developed what they say is the most accurate quantum computing chip ever ...

Rigetti Computing is trading lower Friday, marking a reversal after a surge earlier in the week driven by retail momentum and ...

Create a Physics World account to get access to all available digital issues of the monthly magazine. Your Physics World account is sep ...

Quantum computing needs a sustainability initiative that benchmarks its carbon emissions throughout its entire life cycle ...

The problem is, Rigetti doesn't expect to book those revenues until H1 2026, and the company hasn't announced any other sales ...

D-Wave Quantum’s quantum annealing technology has demonstrated applicability in real-world use cases. Both stocks are trading ...

A group of South Korean researchers has successfully developed an integrated quantum circuit chip using photons (light particles). It is a system capable of controlling eight photons using a photonic ...

The MarketWatch News Department was not involved in the creation of this content. The partnership with Nobel laureate John Martinis showcases a new generation of robust, scalable superconducting ...

“We continue to achieve our ambitious roadmap goals, most recently by demonstrating the industry’s largest multi-chip quantum computer with impressive performance. Our industry-leading proprietary ...

The partnership with Nobel laureate John Martinis showcases a new generation of robust, scalable superconducting qubits designed for real-world quantum computing BOSTON, Dec. 2, 2025 /PRNewswire/ -- ...