The aim of this paper is to revisit the calculation of atom-surface quantum friction in the quantum field theory formulation put forward by Barton (2010 New J. Phys. 12 113045). We show that the power dissipated into field excitations and the associated friction force depend on how the atom is boosted from being initially at rest to a configuration in which it is moving at constant velocity (v)...

The subloading-friction model is capable of describing static friction, the smooth transition from static to kinetic friction and the recovery to static friction after sliding stops or sliding velocity decreases. This causes a negative rate sensitivity (i.e. a decrease in friction resistance with increasing sliding velocity). A generalized subloading-friction model is formulated in this article...

When considering the thermal processes of multilayer nanostructures, a significant part energy is dissipated at boundaries layers; to take this factor into account, Kapitza resistance used in simulation. In study, we calculate Si/SiO 2 interface (alpha-quartz) structures for temperature range up 567 K. The calculations are carried out based on acoustic and diffuse mismatch models. results obtai...

This article presents an overview of the acoustics of friction by covering friction sounds, friction-induced vibrations and waves in solids, and descriptions of other frictional phenomena related to acoustics. Friction, resulting from the sliding contact of solids, often gives rise to diverse forms of waves and oscillations within solids which frequently lead to radiation of sound to the surrou...

Uniformly rotating, homogeneous, incompressible Maclaurin spheroids that spin sufficiently rapidly are secularly unstable to nonaxisymmetric, bar-mode perturbations when viscosity is present. The intuitive explanation is that energy dissipation by viscosity can drive an unstable spheroid to a stable, triaxial configuration of lower energy – a Jacobi ellipsoid. But what about rapidly rotating co...

A bstract Cosmological evolution of axion field in the early universe might be significantly affected by a thermal friction induced coupling to thermalized hidden sector. We examine effects such on dark matter density and its perturbation when dominates over Hubble until begins oscillate around potential minimum. show that presence sizable there can an exponential decay phase before oscillation...

This paper presents the results of both experimental and theoretical investigations for the dynamics of a steel disc spinning on a horizontal rough surface. With a pair of high-speed cameras, a stereoscopic vision method is adopted to perform omnidirectional measurements for the temporal evolution of the disc's motion. The experiment data allow us to detail the dynamics of the disc, and consequ...

When considering the thermal processes of multilayer nanostructures, a significant part energy is dissipated at boundaries layers; to take this factor into account, Kapitza resistance used in simulation. In study, we calculate Si/SiO2 interface (alpha-quartz) structures for temperature range up 567 K. The calculations are carried out based on acoustic and diffuse mismatch models. results obtain...