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  Inverse linear versus exponential scaling of work penalty in finite-time bit reset

Zhen, Y.-Z., Egloff, D., Modi, K., & Dahlsten, O. (2022). Inverse linear versus exponential scaling of work penalty in finite-time bit reset. Physical Review E, 105(4): 044147. doi:10.1103/PhysRevE.105.044147.

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2112.10449.pdf (Preprint), 786KB
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Zhen, Yi-Zheng1, Author
Egloff, Dario2, Author           
Modi, Kavan1, Author
Dahlsten, Oscar1, Author
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1external, ou_persistent22              
2Max Planck Institute for the Physics of Complex Systems, Max Planck Society, ou_2117288              

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 Abstract: A bit reset is a basic operation in irreversible computing. This costs work and dissipates energy in the computer, creating a limit on speeds and energy efficiency of future irreversible computers. It was recently shown by Zhen et al. [Phys. Rev. Lett. 127, 190602 (2021)] that for a finite-time reset protocol, the additional work on top of the quasistatic protocol can always be minimized by considering a two-level system, and then be lower bounded through a thermodynamical speed limit. An important question is to understand under what protocol parameters, including a bit reset error and maximum energy shift, this penalty decreases exponentially vs inverse linearly in the protocol time. Here we provide several analytical results to address this question, as well as numerical simulations of specific examples of protocols.

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Language(s): eng - English
 Dates: 2022-04-292022-04-01
 Publication Status: Issued
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Title: Physical Review E
  Other : Phys. Rev. E
Source Genre: Journal
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Publ. Info: Melville, NY : American Physical Society
Pages: - Volume / Issue: 105 (4) Sequence Number: 044147 Start / End Page: - Identifier: ISSN: 1539-3755
CoNE: https://pure.mpg.de/cone/journals/resource/954925225012