{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:16:33Z","timestamp":1760145393068,"version":"build-2065373602"},"reference-count":40,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2024,7,22]],"date-time":"2024-07-22T00:00:00Z","timestamp":1721606400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Institute for the Science and Technology of Quantum Information (INCT-IQ)","award":["465469\/2014-0","308065\/2022-0"],"award-info":[{"award-number":["465469\/2014-0","308065\/2022-0"]}]},{"name":"National Council for Scientific and Technological Development (CNPq)","award":["465469\/2014-0","308065\/2022-0"],"award-info":[{"award-number":["465469\/2014-0","308065\/2022-0"]}]},{"name":"Coordination of Superior Level Staff Improvement (CAPES)","award":["465469\/2014-0","308065\/2022-0"],"award-info":[{"award-number":["465469\/2014-0","308065\/2022-0"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>The problem of formulating thermodynamics in a relativistic scenario remains unresolved, although many proposals exist in the literature. The challenge arises due to the intrinsic dynamic structure of spacetime as established by the general theory of relativity. With the discovery of the physical nature of information, which underpins Landauer\u2019s principle, we believe that information theory should play a role in understanding this problem. In this work, we contribute to this endeavour by considering a relativistic communication task between two partners, Alice and Bob, in a general Lorentzian spacetime. We then assume that the receiver, Bob, reversibly operates a local heat engine powered by information, and seek to determine the maximum amount of work he can extract from this device. As Bob cannot extract work for free, by applying both Landauer\u2019s principle and the second law of thermodynamics, we establish a bound on the energy Bob must spend to acquire the information in the first place. This bound is a function of the spacetime metric and the properties of the communication channel.<\/jats:p>","DOI":"10.3390\/e26070613","type":"journal-article","created":{"date-parts":[[2024,7,22]],"date-time":"2024-07-22T17:36:04Z","timestamp":1721669764000},"page":"613","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Landauer Principle and the Second Law in a Relativistic Communication Scenario"],"prefix":"10.3390","volume":"26","author":[{"given":"Yuri J.","family":"Alvim","sequence":"first","affiliation":[{"name":"QPequi Group, Institute of Physics, Federal University of Goi\u00e1s, Goi\u00e2nia 74690-900, Goi\u00e1s, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lucas C.","family":"C\u00e9leri","sequence":"additional","affiliation":[{"name":"QPequi Group, Institute of Physics, Federal University of Goi\u00e1s, Goi\u00e2nia 74690-900, Goi\u00e1s, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,22]]},"reference":[{"key":"ref_1","first-page":"411","article-title":"\u00dcber das Relativit\u00e4tsprinzip und die aus demselben gezogenen Folgerungen","volume":"4","author":"Einstein","year":"1907","journal-title":"Jahrb. 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