Generalized Landauer bound from absolute irreversibility

Year: 2024

Authors: Buffoni L., Coghi F., Gherardini S.

Autors Affiliation: Univ Florence, Dept Phys & Astron, I-50019 Sesto Fiorentino, Italy; KTH Royal Inst Technol, Nordita, Hannes Alfvens Vag 12, SE-10691 Stockholm, Sweden; Stockholm Univ, Hannes Alfvens Vag 12, SE-10691 Stockholm, Sweden; Ist Nazl Ottica CNR, Area Sci Pk, I-34149 Basovizza, Trieste, Italy; SISSA, Via Bonomea 265, I-34136 Trieste, Italy; Univ Florence, LENS, Via Carrara 1, I-50019 Sesto Fiorentino, Italy.

Abstract: In this work, we introduce a generalization of the Landauer bound for erasure processes that stems from absolutely irreversible dynamics. Assuming that the erasure process is carried out in an absolutely irreversible way so that the probability of observing some trajectories is zero in the forward process but finite in the reverse process, we derive a generalized form of the bound for the average erasure work, which is valid also for imperfect erasure and asymmetric bits. The generalized bound obtained is tighter than or, at worst, as tight as existing ones. Our theoretical predictions are supported by numerical experiments and the comparison with data from previous works.

Journal/Review: PHYSICAL REVIEW E

Volume: 109 (2)      Pages from: 24138-1  to: 24138-6

More Information: The authors acknowledge support from the MISTI Global Seed Funds MIT-FVG Collaboration Grant Non -Equilibrium Thermodynamics of Dissipative Quantum Systems (NET- DQS) and the PNRR MUR Project No. PE0000023-NQSTI financed by the European Union-Next Generation EU. L.B. was funded from PNRR MUR Project No. SOE0000098- ThermoQT financed by the European Union-Next Generation EU.F.C. was partially supported by the Swedish Research Council Grant No. 638-2013-9243. The views and opinions expressed are only those of the authors and do not necessarily reflect those of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.
KeyWords: Generalisation; Landauer; Numerical experiments; Reverse process; Controlled study; prediction; probability
DOI: 10.1103/PhysRevE.109.024138

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