Nika Kralj (Avtor), Miha Ravnik (Avtor), Žiga Kos (Avtor)

Povzetek

Active matter is naturally out of equilibrium which results in the emergence of diverse dynamic steady states, including the omnipresent chaotic state known as the active turbulence. However, much less is known how active systems dynamically depart out of these configurations, such as get excited or damped to a different dynamic steady state. In this Letter, we demonstrate the coarsening and refinement dynamics of topological defect lines in three-dimensional active nematic turbulence. Specifically, using theory and numerical modeling, we are able to predict the evolution of the active defect density away from the steady state due to time-dependent activity or viscoelastic material properties, establishing a single length scale phenomenological description of defect line coarsening and refinement in a three-dimensional active nematic. The approach is first applied to growth dynamics of a single active defect loop, and then to a full threedimensional active defect network. More generally, this Letter provides insight into the general coarsening phenomena between dynamical regimes in 3Dactivematter, with a possible analogy in other physical systems.

Ključne besede

fizika mehke snovi;aktivni nematiki;soft matter physics;active nematics;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 538.9
COBISS: 147577091 Povezava se bo odprla v novem oknu
ISSN: 0031-9007
Št. ogledov: 12
Št. prenosov: 3
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: fizika mehke snovi;aktivni nematiki;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 128101-1-128101-6
Letnik: ǂVol. ǂ130
Zvezek: ǂiss. ǂ12
Čas izdaje: 2023
DOI: 10.1103/PhysRevLett.130.128101
ID: 23349871