Useful quantum computers move closer, Harvard researchers say

Researchers in the Harvard quantum ecosystem say useful quantum computers may arrive sooner than expected, as rapid progress in networking, fault tolerance, and commercialisation reshapes assumptions about the field. The report points to three spinout companies emerging from affiliated labs as evidence that the technology is moving more quickly into real-world development than many had anticipated.

The research ecosystem around Harvard University has helped drive that shift. Spinouts, including LightsynQ, QuEra, and CavilinQ, are translating academic advances into commercial technologies, from quantum networking to large-scale systems already being deployed internationally. QuEra, for example, recently shipped its second commercial quantum computer to Japan’s National Institute of Advanced Industrial Science and Technology.

Researchers highlight quantum networking as a key development, arguing that linking processors can increase computational power and unlock new functions beyond simple scaling. In the Harvard report, quantum networking is described as opening the door to secure quantum computation and advanced imaging.

Recent improvements in fault tolerance are also presented as a major turning point. Harvard physicist Mikhail Lukin said advances from his lab have reduced error rates and pushed the field beyond where many expected it to be at this stage, making at least some form of fault-tolerant, large-scale quantum computers plausible by the end of this decade.

Researchers involved in the work argue that the pace of progress has been accelerated by strong industry support, investment, and a wider entrepreneurial environment around Harvard and the Greater Boston area. The article presents that combination of academic research, startup formation, and commercial interest as one reason why useful quantum systems now seem closer than expected.

Why does it matter?

The significance of the shift lies not only in the science but also in the fact that quantum computing is increasingly moving from laboratory research into early commercial deployment. As progress in networking and fault tolerance reduces the gap between experimental systems and useful machines, the question is becoming less whether quantum computing will matter and more how quickly it could begin to affect fields such as materials science, chemistry, cryptography, finance, and drug discovery. The rise of startups around Harvard also shows how frontier research is already being translated into industrial capability and economic value.

Would you like to learn more about AI, tech, and digital diplomacy? If so, ask our Diplo chatbot!