World Quantum Day

On World Quantum Day, the Department of Energy's (DOE) Office of Isotope R&D and Production (IRP), within the Office of Science, reaffirms its critical role in advancing quantum information science through the production and development of specialized isotopes. World Quantum Day, celebrated annually on April 14th, highlights the transformative potential of quantum science and technology.

IRP is the cornerstone in the federal effort to secure a robust, domestic supply chain for high-priority isotopes through targeted research and development. These isotopes support a wide array of critical applications that include national security, energy, medicine, and cutting-edge scientific endeavors like quantum information technologies.

Quantum computers leverage the unique properties of quantum mechanics to process information in ways classical computers cannot. A key challenge in developing these advanced systems is maintaining quantum coherence, or the necessary ability to maintain stable and well-defined relationships between quantum states. Quantum coherence is significantly disrupted by "environmental noise," such as from magnetic properties within materials. This is where specialized isotopes become indispensable for certain platforms.

IRP develops production capabilities for specialized isotopes used in various quantum research applications. For example, natural silicon contains different isotopes, including silicon-29, which has magnetic properties that can disrupt delicate quantum states. Pure silicon-28 is "spin-free" and creates a magnetically "quiet" environment for quantum information to be processed. Other isotopes, like germanium-72, ytterbium-171, and rubidium-87 have significant potential in quantum technologies. Germanium-72, with its zero nuclear spin, helps reduce interference and extend coherence times, especially in silicon-germanium heterostructures used in spin-based quantum computing. Ytterbium-171 and rubidium-87 are platforms for neutral atom systems, trapped ion systems, and are being investigated for quantum memory applications. Rubidium-87 is also used for atomic clocks. These isotopes are among a suite of stable isotopes available through IRP.

Another challenge for quantum computing is the need for extreme cold temperatures, as low as around thousandths of a degree above absolute zero. To achieve these temperatures, some quantum computer platforms use complex cooling systems called dilution refrigerators, which require a mixture of helium-3 and helium-4 isotopes as coolants. Helium-3 is an incredibly rare isotope, around 0.000137% of all naturally occurring helium. Due to this rarity and its critical role in quantum computing, national security and other national priorities, the federal government maintains a repository for all federal agencies and their sponsored research. IRP ensures a robust production pipeline for helium-3, stewards the repository, and works with other federal agencies to allocate and distribute this precious resource for federal priorities.

Through sustained investment in isotope R&D, production infrastructure, and strategic partnerships, IRP is strengthening the domestic foundation required to accelerate discovery and deploy next-generation technologies. This work reflects the broader mission to deliver a secure and resilient isotope supply, drive innovation through cutting-edge science and workforce development, and enable critical impact across national security, industry, medicine, and fundamental research.

More information is available here: U.S. Department of Energy Advances Domestic Capabilities for Producing Quantum Materials.