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- Publisher Website: 10.1038/s41467-022-34541-w
- Scopus: eid_2-s2.0-85142379804
- PMID: 36418302
- WOS: WOS:000887967900012
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Article: The nonequilibrium cost of accurate information processing
Title | The nonequilibrium cost of accurate information processing |
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Authors | |
Issue Date | 22-Nov-2022 |
Publisher | Nature Research |
Citation | Nature Communications, 2022, v. 13, n. 1 How to Cite? |
Abstract | Storage of information, in any form, relies on patterns standing out from thermal fluctuations. In this work, the authors highlight a fundamental tradeoff quantifying the minimum amount of nonequilibrium resources needed to achieve a target level of accuracy in the processing of information.Accurate information processing is crucial both in technology and in nature. To achieve it, any information processing system needs an initial supply of resources away from thermal equilibrium. Here we establish a fundamental limit on the accuracy achievable with a given amount of nonequilibrium resources. The limit applies to arbitrary information processing tasks and arbitrary information processing systems subject to the laws of quantum mechanics. It is easily computable and is expressed in terms of an entropic quantity, which we name the reverse entropy, associated to a time reversal of the information processing task under consideration. The limit is achievable for all deterministic classical computations and for all their quantum extensions. As an application, we establish the optimal tradeoff between nonequilibrium and accuracy for the fundamental tasks of storing, transmitting, cloning, and erasing information. Our results set a target for the design of new devices approaching the ultimate efficiency limit, and provide a framework for demonstrating thermodynamical advantages of quantum devices over their classical counterparts. |
Persistent Identifier | http://hdl.handle.net/10722/331895 |
ISSN | 2023 Impact Factor: 14.7 2023 SCImago Journal Rankings: 4.887 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chiribella, G | - |
dc.contributor.author | Meng, F | - |
dc.contributor.author | Renner, R | - |
dc.contributor.author | Yung, MH | - |
dc.date.accessioned | 2023-09-28T04:59:26Z | - |
dc.date.available | 2023-09-28T04:59:26Z | - |
dc.date.issued | 2022-11-22 | - |
dc.identifier.citation | Nature Communications, 2022, v. 13, n. 1 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | http://hdl.handle.net/10722/331895 | - |
dc.description.abstract | <p>Storage of information, in any form, relies on patterns standing out from thermal fluctuations. In this work, the authors highlight a fundamental tradeoff quantifying the minimum amount of nonequilibrium resources needed to achieve a target level of accuracy in the processing of information.Accurate information processing is crucial both in technology and in nature. To achieve it, any information processing system needs an initial supply of resources away from thermal equilibrium. Here we establish a fundamental limit on the accuracy achievable with a given amount of nonequilibrium resources. The limit applies to arbitrary information processing tasks and arbitrary information processing systems subject to the laws of quantum mechanics. It is easily computable and is expressed in terms of an entropic quantity, which we name the reverse entropy, associated to a time reversal of the information processing task under consideration. The limit is achievable for all deterministic classical computations and for all their quantum extensions. As an application, we establish the optimal tradeoff between nonequilibrium and accuracy for the fundamental tasks of storing, transmitting, cloning, and erasing information. Our results set a target for the design of new devices approaching the ultimate efficiency limit, and provide a framework for demonstrating thermodynamical advantages of quantum devices over their classical counterparts.</p> | - |
dc.language | eng | - |
dc.publisher | Nature Research | - |
dc.relation.ispartof | Nature Communications | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | The nonequilibrium cost of accurate information processing | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1038/s41467-022-34541-w | - |
dc.identifier.pmid | 36418302 | - |
dc.identifier.scopus | eid_2-s2.0-85142379804 | - |
dc.identifier.volume | 13 | - |
dc.identifier.issue | 1 | - |
dc.identifier.eissn | 2041-1723 | - |
dc.identifier.isi | WOS:000887967900012 | - |
dc.publisher.place | BERLIN | - |
dc.identifier.issnl | 2041-1723 | - |