Nonequilibrium thermodynamics of erasure with superconducting flux logic

30 Sep 2019  ·  Saira Olli-Pentti, Matheny Matthew H., Katti Raj, Fon Warren, Wimsatt Gregory, Crutchfield James P., Han Siyuan, Roukes Michael L. ·

We implement a thermal-fluctuation driven logical bit reset on a superconducting flux logic cell. We show that the logical state of the system can be continuously monitored with only a small perturbation to the thermally activated dynamics at 500 mK... We use the trajectory information to derive a single-shot estimate of the work performed on the system per logical cycle. We acquire a sample of $10^5$ erasure trajectories per protocol, and show that the work histograms agree with both microscopic theory and global fluctuation theorems. The results demonstrate how to design and diagnose complex, high-speed, and thermodynamically efficient computing using superconducting technology. read more

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Mesoscale and Nanoscale Physics