Cal Poly Physicists Engineer Exotic Quantum Matter Using Magnetic Flux

ByMason Reed

May 7, 2026

Researchers have discovered how to create stable, time-dependent quantum states that do not exist in nature, potentially revolutionizing the stability of future quantum computers.

In the quest to master the quantum realm, researchers at California Polytechnic State University have achieved a breakthrough that challenges our understanding of physical matter. Led by Physics Department Lecturer Ian Powell and student researcher Louis Buchalter, the team has successfully demonstrated that matter can be coerced into exotic states that simply do not exist under static conditions. Published in Physical Review B, the study introduces a concept known as “Flux-Switching Floquet Engineering,” a method of manipulating magnetic fields over time to create entirely new quantum phases.

Traditional materials are defined by their static properties—the arrangement of atoms and the steady pull of magnetic forces. However, Powell and Buchalter found that by periodically and precisely changing a magnetic field, they could generate quantum states with no static counterpart. This discovery suggests that the utility of a material is not just a product of what it is, but how it is driven. This “time-dependent control” allows scientists to organize quantum matter in ways that mirror higher-dimensional systems, providing a new mathematical map for exploring complex physics.

The implications for national sovereignty and technological independence are significant. Currently, quantum computing is hampered by “noise”—environmental interference that causes errors in calculations. By using these newly discovered driven phases, engineers may be able to design quantum systems that are inherently more stable and less vulnerable to external disruptions. This stability is the missing link required to move quantum technology out of specialized laboratories and into the hands of American industries, from aerospace to advanced manufacturing.

While the research is currently grounded in fundamental physics, its trajectory points toward a future of highly tunable quantum devices. The study utilized the square-lattice Harper-Hofstadter model to map out a topological phase diagram, essentially a blueprint for stable quantum phases. These phases act as a shield, protecting the integrity of quantum bits, or qubits, which are the fundamental units of information in this new era of computing.

The project, funded by the William and Linda Frost Fund, also highlights the importance of domestic scientific talent. Louis Buchalter, who will continue his work in materials science at the University of Washington this fall, emphasized that the research demonstrates the power of Floquet engineering for creating systems with highly customizable properties. As the United States faces increasing global competition in the digital frontier, such breakthroughs in material science ensure that the next generation of infrastructure remains secure, decentralized, and grounded in American innovation.

Moving forward, the scientific community must now validate these theoretical findings through experimental trials, such as ultracold-atom simulations. If successful, the ability to engineer matter through time-based magnetic control could provide the reliable foundation needed for a robust, sovereign quantum network.

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