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- Fault-Tolerant Breakthroughs & Capitol Warnings — This Week in Quantum
Fault-Tolerant Breakthroughs & Capitol Warnings — This Week in Quantum
Quantum Computing Newsletter 🤖
Bell State
June 29, 2025
In partnership with
Welcome to The Bell State.
Your weekly roundup of the biggest breakthroughs in Quantum Computing
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Quantinuum’s Big Leap
Quantinuum Announces Major Leap in Fault-Tolerant Quantum Computing (source)
Quantinuum has demonstrated a fully fault-tolerant, universal set of quantum gates, a critical milestone for building scalable and reliable quantum computers.
The company's trapped-ion quantum computer was used to show that logical qubits (made up of multiple physical qubits) could perform operations with lower error rates than the individual physical qubits themselves.
This achievement, detailed in a recent preprint paper, marks a significant move from the noisy, intermediate-scale quantum (NISQ) era toward the age of fault-tolerant quantum computing.
Takeaway: For years, the high error rates of physical qubits have been a major obstacle to building large-scale, useful quantum computers. Quantinuum's demonstration of fault-tolerance shows a viable path to overcoming this challenge, potentially accelerating the timeline for quantum computers to tackle real-world problems in fields like medicine, materials science, and finance.
Congressional Hearing Asks about Quantum
U.S. Congress Sounds Alarm on Quantum Threat to Cybersecurity (Source)
A recent U.S. Congressional hearing highlighted the urgent need for a national strategy to defend against the future threat of quantum computers breaking current encryption standards.
Lawmakers and experts discussed the "steal now, decrypt later" strategy, where adversaries are believed to be harvesting encrypted data today with the intent of decrypting it once a powerful quantum computer is available.
The Government Accountability Office (GAO) recommended that the Office of the National Cyber Director take the lead in coordinating a unified government response and accelerating the transition to post-quantum cryptography (PQC).
Takeaway: The conversation around post-quantum cryptography is moving from a theoretical concern to a matter of pressing national security. This hearing signals growing political will to invest in and mandate the transition to quantum-resistant encryption, a massive undertaking that will affect every sector of the digital economy.
IBM Continues to Regain Quantum Relevance
IBM Ships Quantum System Two to Japan, Launching a Quantum-Centric Supercomputer Hub (Source)
First IBM Quantum System Two deployed outside the U.S.—unveiled 24 June at RIKEN’s Kobe campus
156-qubit Heron processor delivers 10× lower two-qubit error rates and 250 k CLOPS throughput versus Eagle
Rack-level link to the Fugaku supercomputer forms a live test-bed for hybrid quantum-classical workflows in chemistry and optimisation
Takeaway: Oxford’s visualization technique represents a significant leap in materials science, potentially accelerating the development of scalable and fault-tolerant quantum computers.
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💼 JOB BOARD 💼
Quantum Error Correction Research Software Developer - IBM
Quantum Engineer - Atom Computing
Director, Quantum Networking - IonQ
Director of Product Marketing - Quantinuum
Hardware Engineer, Microwave Design, Quantum AI - Google
[Recently FILLED]
Semiconductor Quantum Computing Expert - Johns Hopkins, Senior Manager, Environment and Power - IonQ, Open Rank (Assistant Professor, Associate Professor, or Professor) in Quantum Computing and Simulation - University of Miami, Research Scientist - MIT Lincoln Lab, Quantum Sales Executive - IBM, Vertical Sales Lead, AI - D Wave, Senior Engineer Device Validation - IonQ, Product Marketing Manager (Remote) - IonQ, Hybrid Software Engineer- Atom Computing, Quantum Management Engineer - Google, Quantum Scientist - Noblis, Summer 2025 Intern - Quantum Computing Research - AMFam , Quantum Researcher - NSA, Senior Software Engineer, Machine Learning, Quantum - Google, Product Manager - Qrypt, Quantum Science Consultant - Booz Allen, Quantum Computing Software Intern - NVIDIA, Computational Architect - Psi Quantum, Sales Director - IONQ, Director of Strategic Partnerships - IonQ, Content Designer - IBM, Summer 2024 Quantum Research Internship - IBM, Principal Software Engineer - JP Morgan
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