Beyond CMOS: Ballistic Fluxons and the Future of Reversible Computing with Dr. Kevin Osborn, University of Maryland
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Beyond CMOS: Ballistic Fluxons and the Future of Reversible Computing with Dr. Kevin Osborn, University of Maryland
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What if computers could think faster while using a fraction of the energy? That future may already be in the lab.
In this episode of NSF Discover Superconducting, we take a deep dive into a talk by Dr. Kevin Osborn of the Joint Quantum Institute at the University of Maryland — exploring ballistic and reversible superconducting logic, a radical rethinking of how digital gates work at the quantum level.
As AI data centers push toward 20–30 megawatt power loads, Osborn's research couldn't be more timely. His team is building logic gates that harness the momentum of fluxons — magnetic flux quanta — to process information without constant power input. The result? Simulations showing over 97% energy efficiency and a potential path to zeptojoule-level computing.
We cover the physics behind Long Josephson Junctions, the Ballistic Flip-Flop (BFF), two-polarity bit systems using fluxons and anti-fluxons, and a theoretical framework for sub-nanosecond qubit readout. Plus: early experimental results from the MIT Lincoln Labs fabrication process.
Perfect for students and researchers in quantum computing, electrical engineering, and sustainable technology.
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