Casimir force waves induced by non-equilibrium fluctuations between vibrating plates

Autor:	Hanke, Andreas
Rok vydání:	2009
Předmět:	Condensed Matter - Statistical Mechanics Condensed Matter - Soft Condensed Matter
Druh dokumentu:	Working Paper
Popis:	We study the fluctuation-induced, time-dependent force between two plates immersed in a fluid driven out of equilibrium mechanically by harmonic vibrations of one of the plates. Considering a simple Langevin dynamics for the fluid, we explicitly calculate the fluctuation-induced force acting on the plate at rest. The time-dependence of this force is characterized by a positive lag time with respect to the driving, indicating a finite speed of propagation of stress through the medium, reminiscent of waves. We obtain two distinctive contributions to the force, where one may be understood as directly emerging from the corresponding force in the static case, while the other is related to resonant dissipation in the cavity between the plates. Comment: 16 pages, 5 figures, author affiliation and reference [28] added
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0912.3325 Zobrazit plný text záznamu View this record from Arxiv