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

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

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 ...

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

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% ...

IonQ and Alphabet are taking different approaches in quantum computing, and both could be long-term supercomputer stars.

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

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

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

Rosenblatt Securities began coverage of quantum computing stocks Rigetti Computing (RGTI) and Quantum Computing (QUBT) with ...

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

Alphabet made a breakthrough in late 2024 with its Willow chip, which was able to exponentially reduce errors as it added ...