IonQ Reaches Important Milestone in Achieving Faster Quantum Gates for Quantum Computing and Networking

IonQ and Australian National University collaborate on even faster, higher-fidelity quantum gates with fewer errors, higher scalability and faster time to solution

IonQ (NYSE:IONQ), a leader in the quantum computing and networking industries, today announced a significant milestone in the development of high-speed, mixed-species quantum logic gates for trapped-ion quantum computing and networking. The findings further the company's momentum in driving scalable, high-fidelity quantum networking and distributed quantum computing. Detailed in a new paper written by IonQ scientists and co-authored with Australian National University, the research shows a novel approach to achieving an orders-of-magnitude increase in physical gate speed of two-qubit gates between different atomic species.

"Quantum gate speed is critical for quantum computing at scale, and this work is expected to enable IonQ to bring quantum computing to the market faster to help our customers solve problems not possible with current technology," said Dean Kassmann, SVP of Engineering and Technology at IonQ. "Developing high-speed, high-fidelity mixed-species gates with fewer errors is essential for building large-scale quantum networks. This research not only drives faster and more efficient entanglement but also lays the foundation for delivering scalable, fault-tolerant quantum computing."

IonQ's research demonstrates a practical method for executing high-speed, mixed-species entangling operations, a key step in linking computational qubits across separate quantum processing nodes via photonic connections. The research introduces an industry-first approach using ultrafast state-dependent kicks (SDKs) from nanosecond laser pulses, expected to enable quantum logic gates to operate at much faster megahertz (MHz) speeds. By enabling fast, high-fidelity interactions between different qubit types, this advancement improves quantum information transfer, reduces noise and errors, and enhances network accuracy. The increased gate speed and computational efficiency support deeper circuits, more effective qubit use, and higher system throughput, bringing quantum computing closer to practical scalability and real-world applications.

Mixed-species gates refer to quantum operations between ions of different atomic elements or isotopes such as Barium and Ytterbium. Species are chosen strategically to enable optimal interaction between qubits. For example, some can offer longer coherence times, making them ideal for memory, while others can interact efficiently with photons, improving performance for networking applications. Effectively integrating different species can optimize quantum architectures for scalability, reliability, improved fidelity, and efficient entanglement distribution.

"In addition to being an important milestone for quantum computing, achieving high-speed mixed-species quantum gates is also a crucial step toward scalable and modular quantum networks," said Dr. Ricardo Viteri, Staff Physicist at IonQ. "This research paves the way for architectures that can more efficiently interconnect and process information."

IonQ has filed for patent protection on the underlying invention. Forthcoming experimental work will determine when and how these techniques may be incorporated into IonQ's commercial systems.

The paper was authored by IonQ scientists Haonan Liu, Alexander K. Ratcliffe, Varun D. Vaidya and C. Ricardo Viteri, with Australian National University scientists Phoebe Grosser, Simon A. Haine, Joseph J. Hope, Zain Mehdi and Isabelle Savill-Brown. For more details, see our technical blog post or read the full research paper here: https://arxiv.org/abs/2412.07185.

About IonQ

IonQ, Inc. is a leader in the quantum computing and networking industries, delivering high-performance systems aimed at solving the world's largest and most complex commercial and research use cases. IonQ's current generation quantum computers, IonQ Forte and IonQ Forte Enterprise, are the latest in a line of cutting-edge systems, boasting 36 algorithmic qubits. The company's innovative technology and rapid growth were recognized in Newsweek's 2025 Excellence Index 1000, Forbes' 2025 Most Successful Mid-Cap Companies list, and Built In's 2025 100 Best Midsize Places to Work in Washington DC and Seattle, respectively. Available through all major cloud providers, IonQ is making quantum computing more accessible and impactful than ever before. Learn more at IonQ.com.

IonQ Forward-Looking Statements

This press release contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Some of the forward-looking statements can be identified by the use of forward-looking words. Statements that are not historical in nature, including the words "advancement," "approach," "bring," "building," "computational," "developing," "development," "drive," driving," "efficiency," "expected," "faster," "improved," "improves," "improving," "increase," "milestone," "momentum," and other similar expressions are intended to identify forward-looking statements. These statements include those related to the company's technology delivering scalable, fault-tolerant quantum computing in the future, IonQ's quantum computing capabilities and plans, and the scalability, fidelity, reliability, efficiency, effectiveness, and speed of IonQ's quantum computing offerings. Forward-looking statements are predictions, projections and other statements about future events that are based on current expectations and assumptions and, as a result, are subject to risks and uncertainties. Many factors could cause actual future events to differ materially from the forward-looking statements in this press release, including but not limited to: changes in laws and regulations affecting IonQ's patents; IonQ's ability to implement its technical roadmap, including IonQ's ability to maintain or obtain patent protection for its products and technology, including with sufficient breadth to provide a competitive advantage, or IonQ's ability to deliver higher speed and fidelity gates with fewer errors, enhance information transfer and network accuracy, or reduce noise and errors. You should carefully consider the foregoing factors and the other risks and uncertainties disclosed in the Company's filings, including but not limited to those described in the "Risk Factors" section of IonQ's most recent Quarterly Report on Form 10-Q and other documents filed by IonQ from time to time with the Securities and Exchange Commission. These filings identify and address other important risks and uncertainties that could cause actual events and results to differ materially from those contained in the forward-looking statements. Forward-looking statements speak only as of the date they are made. Readers are cautioned not to put undue reliance on forward-looking statements, and IonQ assumes no obligation and does not intend to update or revise these forward-looking statements, whether as a result of new information, future events, or otherwise. IonQ does not give any assurance that it will achieve its expectations. IonQ may or may not choose to practice or otherwise use the inventions described in the issued patents in the future.

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