| Naslov: | Information-optimal mixing at low Reynolds number |
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| Avtorji: | ID Cocconi, Luca (Avtor)
ID Shi, Yihong (Avtor)
ID Vilfan, Andrej, Institut "Jožef Stefan" (Avtor) |
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| Datoteke: |  URL - Izvorni URL, za dostop obiščite https://journals.aps.org/prl/abstract/10.1103/cl9m-cmhb
 PDF - Predstavitvena datoteka, prenos (537,83 KB)
MD5: 34B015924ABD1E069343734CADB5C125
Opis: Raziskovalni podatki so na voljo na strani: https://zenodo.org/records/15745302.
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| Jezik: | Angleški jezik |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: |  IJS - Institut Jožef Stefan
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| Povzetek: | 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. |
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| Ključne besede: | information thermodynamics, mixing enhancement, nonequilibrium statistical mechanics, shear flows |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 05.02.2025 |
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| Datum sprejetja članka: | 24.06.2025 |
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| Datum objave: | 15.07.2025 |
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| Založnik: | American Physical Society |
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| Leto izida: | 2025 |
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| Št. strani: | str. 037101-1-037101-8 |
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| Številčenje: | Vol. 135, iss. 3, [article no.] 037101 |
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| Izvor: | ZDA |
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| PID: | 20.500.12556/DiRROS-24504  |
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| UDK: | 53 |
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| ISSN pri članku: | 1079-7114 |
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| DOI: | 10.1103/cl9m-cmhb |
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| COBISS.SI-ID: | 242913283 |
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| Opomba: | Nasl. z nasl. zaslona;
Opis vira z dne 17. 7. 2025;
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| Datum objave v DiRROS: | 03.12.2025 |
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| Število ogledov: | 108 |
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| Število prenosov: | 46 |
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| Metapodatki: |    |
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