Optical-Atomic System Integration & Calibration (OASIC)
Known for pushing the limits of technical potential and turning fantasies into reality, the Defence Advanced Research Projects Agency (DARPA) is a US Department of Defence agency tasked with developing cutting-edge technology for the military. DARPA is taking major steps to speed up the field’s transition from lab-based research to real-world applications in the field of quantum technology. The Optical-Atomic System Integration & Calibration (OASIC) program and the larger Quantum Benchmarking Initiative (QBI), which encompasses the Underexplored Systems for Utility-Scale Quantum Computing program, are two notable initiatives in this endeavour.
DARPA’s Optical-Atomic System Integration & Calibration (OASIC) Program
In order to solve the lengthy transition time of quantum technologies from research to practical implementation, which can now take decades, DARPA began the OASIC program in early 2024 as a Small Business Technology Transfer (STTR) initiative. The complex and delicate laboratory setups needed to sustain the extremely sensitive quantum states of atoms are partially to blame for this delay.
OASIC’s primary goal is to create a network of fee-based, modular quantum testbeds. These testbeds are positioned in Boulder/Pleasanton, Ann Arbour, and Boston. Their main purpose is to facilitate the quick assessment and certification of important quantum components, including qubits, quantum sensors, and atomic clocks, which are created by universities and small enterprises. In order to promote a worldwide network of innovation in quantum technology, the program constantly looks for chances for international cooperation.
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Independent performance verification is a major advantage of these capabilities, which should simplify technology evaluation for deployment in the commercial and defence sectors. In order for an OASIC certification to become a recognised “seal of approval” for optical-atomic component performance, OASIC envisions these testbeds offering services similar to those provided by organisations such as the National Institute of Standards and Technology (NIST) or Underwriters Laboratory. By identifying quantum components that are prepared for integration into defence systems, this certification would help the Defence Department cut down on expenses, time, and uncertainty.
At the heart of OASIC’s design philosophy are modularity and reconfigurability. The facilities are “Lego-like,” meaning that by simply changing out individual parts, researchers may quickly modify settings for testing a variety of quantum devices, control systems, and measurement techniques. This plan ensures that testbeds will evolve with new technologies and remain a quantum community resource. Interoperability and compatibility between parts and subsystems require standards. Testbeds will support photonic quantum systems, trapped ions, superconducting qubits, and quantum sensors.
Additionally, OASIC seeks to create a “water cooler” effect in the quantum ecosystem by encouraging cooperation and knowledge exchange among developers, researchers, and industry participants. The goal of this collaborative environment is to speed up innovation by assisting in the identification and resolution of important component limits, such as the requirement for improved high-speed optical modulators.
The long-term goal of OASIC is to create a network of resources that is on par with well-established university-affiliated research centres (UARCs), offering standardised contracts, transparent pricing, committed staff, and simplified procedures for obtaining testing support. Through training programs and educational efforts, the program fosters the creation of a qualified workforce in quantum technology while emphasising sustainability.
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In terms of schedule, the OASIC STTR program began operations in early 2024. Three small business-university teams were chosen to create technical and commercial plans for their individual testbeds during the first phase, which lasted six months. These groups are:
- QuEra, Harvard University, MIT, and the University of Montana are leading the Qubits testbed in Boston.
- Rydberg Technologies, Purdue University, and the University of Michigan comprise the Ann Arbour, Michigan, quantum sensors testbed.
- Vector Atomic and the University of Colorado make up the Atomic Clock Testbeds in Boulder, Colorado, and Pleasanton, California. The goal of Phase 2, which began in April and lasts for two years, is to construct and demonstrate these testbeds. A broad contractual mechanism for extensive testbed access is expected to be established in the third and final phase.
Small Business Technology Transfer (STTR) Program
The STTR program is a particular kind of federal initiative that involves small enterprises and research institutions (like universities) in federal research and development in order to promote technological innovation. The STTR structure was selected for OASIC because it necessitates collaborations between academic institutions with state-of-the-art quantum labs and small enterprises with the capacity to develop solid commercialisation strategies, employ personnel, and concentrate on clients in order to make the testbeds profitable and self-sustaining. By combining the fundamental knowledge and research capabilities of universities with the flexibility and inventiveness of small enterprises, this cooperative strategy guarantees robust commercialisation strategies and a customer-focused mindset.
DARPA’s Broader Quantum Computing Initiatives
Through its larger Quantum Benchmarking Initiative (QBI), which was unveiled in mid-2024, DARPA is making significant investments in speeding up the development of “industrially useful quantum computers” in addition to OASIC. QBI is an industry catalyst, benchmarking experiment, and landscape study in addition to being a funding program.
The specific objective of QBI is to thoroughly ascertain if it is technically feasible to develop a fault-tolerant, utility-scale quantum computer by 2033, when its computational worth surpasses its cost. The program makes a distinction between “quantum utility,” which focusses on finding solutions to real-world issues where quantum systems actually beat classical ones in quantifiable, significant, and scalable ways, and “quantum advantage,” which is shown in isolated lab tests. General-purpose, fault-tolerant quantum computers that can execute a broad variety of quantum algorithms across disciplines are the main emphasis of QBI.
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Molecular modelling for drug development, intricate financial and logistical optimisation, and quantum simulations of cutting-edge materials for energy and superconductivity are a few possible uses. Determining if the “juice is worth the squeeze” involves DARPA developing new “quantum value” measurements that compare computational performance, error correction cost, and energy consumption to traditional alternatives.
DARPA has chosen and is in negotiations with Microsoft and PsiQuantum for the Underexplored Systems for Utility-Scale Quantum Computing (US2QC) program’s Validation and Co-Design phase as part of QBI. Following a “incredibly rigorous and deeply technical analysis” by DARPA’s test and assessment team, which included more than 50 experts, this pick was made public on February 6, 2025. PsiQuantum is employing silicon-based photonics to develop an error-corrected, utility-scale quantum computer based on a lattice-like fabric of photonic qubits, while Microsoft is working on an error-corrected, utility-scale quantum computer with tiny superconducting topological qubits.
For early-phase participation in QBI, about 20 candidates have been invited, including academic-industrial hybrids, well-funded startups like PsiQuantum, Atom Computing, and Xanadu, and well-established companies like Microsoft, IonQ, and Rigetti. These businesses use a variety of quantum computing techniques, including as superconducting qubits, trapped-ion qubits, photonic qubits, and topological qubits.
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The realisation that quantum computing is a crucial technology for scientific advancement, economic competitiveness, and national security is what gives QBI its immediacy. By enabling native simulation of quantum systems, it also fulfils a scientific goal to overcome bottlenecks in fundamental research. Even though there are still many obstacles to overcome, such the requirement for new quantum-native software and resource-intensive quantum error correction, DARPA is betting that at least one feasible route will be found by 2033. It is anticipated that the QBI program will have a major impact on the businesses and strategies that attract interest and capital in the quantum sector.
