Refining Landauer's Stack: Balancing Error and Dissipation When Erasing Information

Abstract

Nonequilibrium information thermodynamics determines the minimum energy dissipation to reliably erase memory under time-symmetric control protocols. We demonstrate that its bounds are tight and so show that the costs overwhelm those implied by Landauer's energy bound on information erasure. Moreover, in the limit of perfect computation, the costs diverge. The conclusion is that time-asymmetric protocols should be developed for efficient, accurate thermodynamic computing. And, that Landauer's Stack -- the full suite of theoretically-predicted thermodynamic costs -- is ready for experimental test and calibration.

arXiv comment12 pages, 6 figures, 1 table; http://csc.ucdavis.edu/~cmg/compmech/pubs/tsperase.htm. arXiv admin note: substantial text overlap with arXiv:1909.06650

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Cited by in corpus (5)

• The impossibility of Landauer's bound for almost every quantum state
• Landauer Principle and Thermodynamics of Computation
• Stochastic thermodynamic bounds on logical circuit operation
• Optimal control of bit erasure in stochastic random access memory
• Optimal finite-time processes in weakly driven overdamped Brownian motion