Quantum Hardware Standards Begin to Take Shape
The quantum computing industry is moving toward standardization, with new research proposing robust methods for assessing hardware quality. Recent work focuses on benchmarking superconducting qubits and evaluating cryogenic components — foundational steps that could inform future IEEE or IEC hardware standards.
The IEEE's early standards work, like the P7130 for quantum definitions, was chaired by William "whurley" Hurley, founder of Strangeworks, and included participants from IBM like Jerry Chow. This foundational effort aims to create a common language for a fragmented industry, a crucial step before performance and hardware standards can be fully established. Benchmarking protocols are a major focus, with Randomized Benchmarking (RB) being an industry-standard method used by Google and IBM to measure average gate error rates. However, RB's scalability is limited. Newer techniques like Mirror Randomized Benchmarking (MRB), developed by researchers at Sandia National Laboratories, are designed to scale to thousands of qubits and better quantify critical errors like crosstalk. Superconducting qubits from companies like Google, IBM, and Rigetti require extreme cryogenic environments, operating at temperatures between 10 to 20 millikelvin, colder than deep space. Achieving this requires specialized dilution refrigerators and cryogenic-CMOS (Cryo-CMOS) technology to allow control electronics to function efficiently with low heat dissipation in these frigid conditions. The race for higher performance has pushed two-qubit gate fidelities beyond 99.9%. Researchers at MIT, for instance, have achieved a single-qubit fidelity of 99.998% with a superconducting qubit called a fluxonium. These incremental gains are critical for reducing the immense overhead required for future quantum error correction. The geopolitical landscape heavily influences the standards ecosystem, with the U.S. and China taking divergent paths. The U.S. approach is largely market-driven, involving entities like NIST and industry giants, while China employs a state-driven, centralized strategy focused on national strategic needs, with organizations like the Chinese Academy of Sciences (CAS) at the forefront. This competition is not without friction. The U.S. government has bypassed its usual standards body, ANSI, to directly engage allies on creating a new ISO/IEC Joint Technical Committee (JTC) for quantum, a move seen as a way to counter Chinese influence. This has been coupled with direct action, such as the U.S. Commerce Department placing top Chinese quantum research centers, including the Hefei National Laboratory for Quantum Information Science, on an export control Entity List. China has achieved significant progress, particularly in quantum communication with its Micius satellite and an extensive ground network. While assessed to be trailing the U.S. in quantum computing hardware, its state-led coordination and massive investment of around $15 billion are rapidly closing the gap. International coordination is seen as essential, with working groups like the IEEE P1947 for a Quantum Cybersecurity Framework, now chaired by Radia Funna, aiming to create interoperable standards. The goal is to avoid market fragmentation and create a consistent suite of global standards for everything from quantum cybersecurity to device characterization.
