Biphasic, lyotropic, active nematics.
| Autor: | Blow ML; Centro de Física Teórica e Computacional, Avenida Professor Gama Pinto 2, P-1649-003 Lisboa, Portugal and Departamento de Física da Faculdade de Ciências, Universidade de Lisboa, P-1749-016 Lisboa, Portugal., Thampi SP; The Rudolf Peierls Centre for Theoretical Physics, 1 Keble Road, Oxford OX1 3NP, United Kingdom., Yeomans JM; The Rudolf Peierls Centre for Theoretical Physics, 1 Keble Road, Oxford OX1 3NP, United Kingdom. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | Physical review letters [Phys Rev Lett] 2014 Dec 12; Vol. 113 (24), pp. 248303. Date of Electronic Publication: 2014 Dec 12. |
| DOI: | 10.1103/PhysRevLett.113.248303 |
| Abstrakt: | We perform dynamical simulations of a two-dimensional active nematic fluid in coexistence with an isotropic fluid. Drops of active nematic become elongated, and an effective anchoring develops at the nematic-isotropic interface. The activity also causes an undulatory instability of the interface. This results in defects of positive topological charge being ejected into the nematic, leaving the interface with a diffuse negative charge. Quenching the active lyotropic fluid results in a steady state in which phase-separating domains are elongated and then torn apart by active stirring. |
| Databáze: | MEDLINE |
| Externí odkaz: |
|