Forces Induced by Non-Equilibrium Fluctuations: The Soret-Casimir Effect
Ali Najafi, Ramin Golestanian
Abstract
The notion of fluctuation-induced forces is generalized to the cases where the fluctuations have nonequilibrium origin. It is shown that a net force is exerted on a single flat plate that restricts scale-free fluctuations of a scalar field in a temperature gradient. This force tends to push the object to the colder regions, which is a manifestation of thermophoresis or the Soret effect. In the classic two-plate geometry, it is shown that the Casimir forces exerted on the two plates differ from each other, and thus the Newton's third law is violated.
Create a lesson
Related papers
Competing routes to spontaneous flow in confined active nematics
Rahil N. Valani, Vedad Dzanic, Sumesh P. Thampi et al.
Scaling and Condensation of Dry Active Matter Around Circular Obstacles
Felipe P. S. Júnior, F. Q. Potiguar, Jorge L. C. Domingos et al.
Active Hydrodynamics Couples Polymer Organization, Shape Fluctuations, and Motility in Deformable Droplets
Ritu Raj, P. B. Sunil Kumar
Inferring interactions between active particles using harmonic traps
Arnaud Compagnie, Joscha Mecke, Ivo Buttinoni et al.
Spontaneous filament formation and network self-assembly via active phase separation
Elena Lucas, Varun Venkatesh, Amin Doostmohammadi
Sensitivity of Nucleation Thermodynamics and Kinetics to the Treatment of Long-Range Interactions
Fernanda Sulantay Vargas, Kimia Sinaeian, Amir Haji-Akbari