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Nonequilibrium thermodynamics of erasure with superconducting flux logic

Saira, Olli-Pentti and Matheny, Matthew H. and Katti, Raj and Fon, Warren and Wimsatt, Gregory and Crutchfield, James P. and Han, Siyuan and Roukes, Michael L. (2020) Nonequilibrium thermodynamics of erasure with superconducting flux logic. Physical Review Research, 2 (1). Art. No. 013249. ISSN 2643-1564. doi:10.1103/PhysRevResearch.2.013249.

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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 10⁵ 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.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Saira, Olli-Pentti0000-0001-9715-0897
Matheny, Matthew H.0000-0002-3488-1083
Fon, Warren0000-0002-5447-2324
Crutchfield, James P.0000-0003-4466-5410
Han, Siyuan0000-0002-1106-9076
Roukes, Michael L.0000-0002-2916-6026
Additional Information:© 2020 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Received 30 September 2019; accepted 20 January 2020; published 3 March 2020. We thank A. Boyd and C. Jarzynski for helpful discussions. J.P.C. thanks the Santa Fe Institute and J.P.C., O.-P.S., M.H.M., R.K., W.F., G.W., and M.L.R. thank the Telluride Science Research Center for their hospitality during visits. This material is based upon work supported by, or in part by, the U.S. Army Research Laboratory and the U.S. Army Research Office under Contracts No. W911NF-13-1-0390 and No. W911NF-18-1-0028.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Army Research LaboratoryW911NF-13-1-0390
Army Research Office (ARO)W911NF-18-1-0028
Issue or Number:1
Record Number:CaltechAUTHORS:20191216-161528418
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:100319
Deposited By: Tony Diaz
Deposited On:17 Dec 2019 00:52
Last Modified:16 Nov 2021 17:53

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