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Title: Nonequilibrium thermodynamics of erasure with superconducting flux logic

Journal Article · · Physical Review Research
ORCiD logo [1];  [2];  [2];  [2];  [3]; ORCiD logo [3];  [4];  [2]
  1. California Institute of Technology (CalTech), Pasadena, CA (United States). Kavli Nanoscience Inst.; Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. California Institute of Technology (CalTech), Pasadena, CA (United States). Kavli Nanoscience Inst.
  3. Univ. of California, Davis, CA (United States)
  4. Univ. of Kansas, Lawrence, KS (United States)

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.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
SC0012704
OSTI ID:
1593261
Report Number(s):
BNL--212429-2019-JAAM
Journal Information:
Physical Review Research, Journal Name: Physical Review Research Journal Issue: 1 Vol. 2; ISSN 2643-1564
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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