Tag

Quantum Friction

All articles tagged with #quantum friction

science2 months ago•5 min saved

Light as a Nanoscale Brake: Quantum Friction Slows Nanotubes in Water

Scientists report that shining light on fluorescent carbon-mesh nanotubes suspended in water slows their diffusion due to light-induced quantum friction: excited electrons (excitons) couple with nearby water and transfer momentum, effectively acting as a nanoscale brake. The slowdown grows with light intensity and vanishes when exciton mobility is hindered by defects, a finding confirmed by terahertz spectroscopy. This reveals a blurred boundary between solid and liquid behavior at the nanoscale and could enable light-controlled nanorobots and reaction tuning.

via ScienceAlert|

#diffusion #excitons #nanotubes

science-and-technology3 years ago•3 min saved

Water Communication with Electrons in Graphene Unveiled by Scientists

Scientists have experimentally confirmed the existence of quantum friction, a phenomenon that occurs at the interface of liquid water and graphene. This interaction between water and carbon's electrons could have implications for water purification, desalination processes, and even liquid-based computers. The discovery was made using advanced ultrafast techniques, and the researchers aim to gain control over the water-electron interaction to design more efficient filtration processes.

via SciTechDaily|

#graphene #liquid-based-computers #nanotechnology

science3 years ago•4 min saved

Quantum friction controls water flow on carbon surfaces, study finds.

A new study published in Nature Nanotechnology has experimentally demonstrated that the flow of water on a carbon surface is governed by an unusual phenomenon called quantum friction. The study shows that water can interact directly with the carbon's electrons, which is very unusual in fluid dynamics. These results could lead to applications in water purification and desalination processes and maybe even to liquid-based computers.

via Phys.org|

#carbon #graphene #nanotechnology