Rigetti Computing, Inc. (Nasdaq: RGTI) (“Rigetti” or the “Company”), a pioneer in full-stack quantum-classical computing, ...

Quantum engineers have now demonstrated a fully controllable three‑qubit register on a silicon photonic chip, turning a ...

Researchers at Kumamoto University, in collaboration with colleagues in South Korea and Taiwan, have discovered that a unique ...

IonQ also set a world record for 2-qubit gate performance, a measure of accuracy and speed for quantum systems. The company ...

We might be witnessing the start of a new computing era where AI, cloud and quantum begin to converge in ways that redefine ...

Most quantum companies use a superconducting approach. However, IonQ instead uses a trapped ion approach. Trapped ion is more ...

Rigetti Computing is pursuing a more universal gate-based quantum system that theoretically should be able to solve more complex computational problems. The company uses a modular chip architecture ...

Quantum computing startups continue to raise enormous rounds of capital as Quantum Computing closed a $100 million series A financing round, boosting its total capital raised to $124 million. Quantum ...

Amplifier’s ability to operate at frequencies greater than 20 gigahertz provides path forward for more scalable quantum ...

DARPA's HARQ program aims to enable different qubit types to work together, addressing the limitations of single-architecture ...

Rigetti Computing 's ( RGTI 0.48%) stock closed at a record high of $56.34 per share on Oct. 15, 2025. That marked a 6,850% ...

The 11-qubit silicon processor marks a significant advancement in quantum computing, combining high fidelity with scalable ...