20.500.12556/DiRROS-24504 Information-optimal mixing at low Reynolds number Mutual information between particle positions before and after mixing provides a universal assumption-free measure of mixing efficiency at low Reynolds number that accounts for the kinematic reversibility of the Stokes equation. For a generic planar shear flow with time-dependent shear rate, we derive a compact expression for the mutual information as a nonlinear functional of the shearing protocol and solve the associated extremization problem exactly to determine the optimal control under both linear and nonlinear constraints, specifically total shear and total dissipation per unit volume. Remarkably, optimal protocols turn out to be universal and time-reversal symmetric in both cases. Our results establish a minimum energetic cost of erasing information in a broad class of nonequilibrium drift-diffusive systems. information thermodynamics mixing enhancement nonequilibrium statistical mechanics shear flows true false true American Physical Society ZDA Angleški jezik Ni določen Neznano 2025-12-03 10:55:17 2025-12-03 10:55:18 2025-12-04 03:46:30 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Opis vira z dne 17. 7. 2025; str. 037101-1-037101-8 iss. 3, [article no.] 037101 Vol. 135 Jul. 2025 0000-00-00 Zaloznikova Objavljeno apc 2025-02-05 2025-06-24 2025-07-15 53 1079-7114 10.1103/cl9m-cmhb 242913283 https://journals.aps.org/prl/abstract/10.1103/cl9m-cmhb 1 2dd69dc9-d02e-11f0-94a7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=36521 RAZ_Cocconi_Luca_2025.pdf RAZ_Cocconi_Luca_2025.pdf Raziskovalni podatki so na voljo na strani: https://zenodo.org/records/15745302. 1 34B015924ABD1E069343734CADB5C125 1da17d82884b9900ca3f232773d2ae764671b6611c6b456a6a321ca4c73c5331 6e84b172-d02e-11f0-94a7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=36523 Institut Jožef Stefan 0 0 0