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arXiv · 1909.13828

Nonequilibrium thermodynamics of erasure with superconducting flux logic

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

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.

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Olli-Pentti Saira, Matthew H. Matheny, Raj Katti, Warren Fon, Gregory Wimsatt, James P. Crutchfield, Siyuan Han, Michael L. Roukes. 2019-09-30. Nonequilibrium thermodynamics of erasure with superconducting flux logic. https://doi.org/10.1103/physrevresearch.2.013249

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