{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T19:11:01Z","timestamp":1790881861575,"version":"4.1.0"},"reference-count":50,"publisher":"American Physical Society (APS)","issue":"3","license":[{"start":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T00:00:00Z","timestamp":1790553600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100007706","name":"Ministero delle imprese e del made in Italy","doi-asserted-by":"publisher","award":["J95F21002190001"],"award-info":[{"award-number":["J95F21002190001"]}],"id":[{"id":"10.13039\/501100007706","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.aps.org"],"crossmark-restriction":true},"short-container-title":["Phys. Rev. E"],"accepted":{"date-parts":[[2026,8,7]]},"abstract":"<jats:p>\n                    We analytically solve the finite-time control problem of driving an overdamped particle via an optical trap under costly measurement. By formulating this mesoscopic information engine within the partially observable Markov decision process framework, we demonstrate that the underlying linear-quadratic-Gaussian dynamics decouples the optimal measurement and driving protocols. We derive the optimal feedback control law for the trap placement, which recovers the discontinuous Schmiedl-Seifert driving protocol in the open-loop limit and extends it to any measurement scheduling. For a costly binary (on-off) sensor, we evaluate the optimal measurement protocol and derive physical bounds on the maximum net gain that can be extracted from thermal fluctuations. We show the emergence of deadline-induced blindness, a phenomenon where all measurements cease as the deadline approaches regardless of their cost. Taking the infinite-horizon limit, we find the exact periodic measurement schedules for the steady state as a function of the measurement cost\n                    <a:math xmlns:a=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                      <a:mi>C<\/a:mi>\n                    <\/a:math>\n                    and derive the macroscopic velocity envelopes beyond which viscous drag forces the engine into a net-dissipative regime. Finally, we generalize the results to a variable-precision sensor.\n                  <\/jats:p>","DOI":"10.1103\/85qf-nwj5","type":"journal-article","created":{"date-parts":[[2026,8,7]],"date-time":"2026-08-07T19:43:52Z","timestamp":1786131832000},"update-policy":"https:\/\/doi.org\/10.1103\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Optimal control of a mesoscopic information engine"],"prefix":"10.1103","volume":"114","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6367-0082","authenticated-orcid":true,"given":"Emanuele","family":"Panizon","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01dt7qh15","id-type":"ROR","asserted-by":"publisher"}],"name":"Area Science Park"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"16","published-online":{"date-parts":[[2026,9,28]]},"reference":[{"key":"85qf-nwj5Cc1R1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.78.2690","type":"journal-article"},{"key":"85qf-nwj5Cc2R1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevE.60.2721","type":"journal-article"},{"key":"85qf-nwj5Cc3R1","doi-asserted-by":"publisher","DOI":"10.1088\/0034-4885\/75\/12\/126001","type":"journal-article"},{"key":"85qf-nwj5Cc4R1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.104.090602","type":"journal-article"},{"key":"85qf-nwj5Cc5R1","doi-asserted-by":"publisher","DOI":"10.1088\/1751-8113\/45\/16\/162001","type":"journal-article"},{"key":"85qf-nwj5Cc6R1","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevE.85.021104","type":"journal-article"},{"key":"85qf-nwj5Cc7R1","doi-asserted-by":"publisher","DOI":"10.3389\/fphy.2023.1108357","type":"journal-article"},{"key":"85qf-nwj5Cc8R1","volume-title":"Theory of Heat","author":"J.\u00a0C. 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All rights are reserved, including those for text and data mining, AI training, and similar technologies.","name":"copyright_statement","label":"Copyright statement","group":{"name":"copyright","label":"copyright"}},{"value":"2026","name":"copyright_year","label":"Copyright year","group":{"name":"copyright","label":"copyright"}},{"value":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/","name":"creative_commons_license","label":"Creative Commons license","group":{"name":"licenses","label":"Licenses"}},{"value":"\u00a92026 The authors","name":"copyright_holder","label":"Copyright holder","group":{"name":"copyright","label":"copyright"}}],"article-number":"034144"}}