Quantum 100 Spotlights Ruiz’s Work on Cat Qubits & Error Correction
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Alice & Bob researcher Diego Ruiz has been recognized by the organizers of the International Year of Quantum (IYQ) as a member of The Quantum 100, a worldwide initiative celebrating individuals shaping the future of quantum science and technology. The recognition highlights Ruiz’s doctoral research at Alice & Bob, where he co-authored impactful papers on cat qubits—a method significantly improving the efficiency of quantum error correction—and recently published work on hardware-efficient magic state production for superconducting quantum computers. This acknowledgment, coinciding with the UN-designated International Year of Quantum in 2025, celebrates Ruiz’s contributions to both research and public understanding of the quantum field.
Diego Ruiz Receives Quantum 100 Recognition Diego Ruiz has been recognized as a member of The Quantum 100 by the organizers of the United Nations-designated International Year of Quantum (IYQ). This recognition highlights his achievements as both a quantum computing researcher and a science communicator. IYQ specifically noted Ruiz’s ability to combine research expertise with impactful communication, supporting both public understanding and growth within the quantum ecosystem. He is currently pursuing his doctoral research at Alice & Bob, a leader in fault-tolerant quantum computing. Ruiz’s research focuses on cat qubits, a technology key to improving quantum error correction, and he co-authored a groundbreaking paper published in Nature Communications in January 2025, titled “LDPC-cat codes for low-overhead quantum computing in 2D.” His recent work demonstrates the most hardware-efficient method to date for producing magic states on superconducting quantum computers, a crucial step toward practical quantum computation. Alice & Bob notes his work on error mitigation strategies has already shaped the future of the field. Beyond his research, Ruiz reaches a broad audience through his online platforms, StreamTheory, with 255,000 TikTok followers and 163,000 YouTube subscribers. He presents physics concepts and industry developments, making quantum science accessible to a wide audience. Ruiz has presented his work at the APS March Meetings for three consecutive years – 2023, 2024, and 2025 – demonstrating a consistent contribution to the field. Alice & Bob’s Focus on Cat Qubit Technology Alice & Bob focuses its quantum computing development on cat qubit technology, a system specialized by the company’s founders and subsequently adopted by Amazon. This approach has demonstrated significant efficiency gains; recent results indicate a potential reduction in hardware requirements for large-scale quantum computers by up to 200 times when compared to competing technologies. Founded in 2020, Alice & Bob has secured €130 million in funding and employs over 150 people, highlighting its commitment to realizing a universal, fault-tolerant quantum computer. Diego Ruiz, a researcher at Alice & Bob, contributes to the company’s work on cat qubits through his doctoral research and co-authored papers. His recent publications include work detailing the most hardware-efficient method for producing magic states on superconducting quantum computers, a critical step towards practical quantum computation. In January 2025, Ruiz was a leading author of a paper in Nature Communications on “LDPC-cat codes for low-overhead quantum computing in 2D,” further demonstrating expertise in this area. The focus on cat qubits is central to Alice & Bob’s strategy, positioning the company as a leader in fault-tolerant quantum computing. The company has demonstrated experimental results that surpass those of larger technology companies like Google and IBM. Ruiz’s research specifically improves the efficiency of quantum error correction using cat qubits, contributing to the advancement of the entire quantum ecosystem and the development of scalable quantum processors. Ruiz’s Contributions to Quantum Communication & Research Diego Ruiz is recognized by the International Year of Quantum (IYQ) as a member of The Quantum 100, highlighting his contributions to the quantum community. His research at Alice & Bob focuses on cat qubits, a technology the company developed and which Amazon later adopted, significantly improving quantum error correction efficiency. Specifically, Alice & Bob’s cat architecture has demonstrated the potential to reduce hardware requirements for large-scale quantum computers by up to 200 times compared to competing approaches. Ruiz has co-authored impactful research, including a January 2025 publication in Nature Communications titled “LDPC-cat codes for low-overhead quantum computing in 2D.” He also recently published work illustrating the most hardware-efficient method to date for producing magic states on superconducting quantum computers—a critical step towards practical quantum computation. His doctoral research is supported by Alice & Bob, a company that has raised €130 million in funding and hired over 150 employees. Beyond research, Ruiz actively communicates quantum science to a broad audience through platforms like TikTok (255,000 followers) and YouTube (163,000 subscribers) under the name StreamTheory. He presents complex physics concepts and industry developments in an accessible format, supporting public understanding and growth of the quantum ecosystem. Ruiz has also presented his work at the APS March Meetings in 2023, 2024 and 2025. Diego Ruiz is a science communicator for the 21st century. He combines research expertise with impactful science communication… Ruiz’s research and creative outreach support both public understanding and the growth of the quantum ecosystem, demonstrating a dedication and passion for his field that inspires others. IYQ Source: https://alice-bob.com/ Tags: