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This study reveals a novel mechanism where light intensity directly reduces the diffusion speed of carbon nanotubes in water via quantum friction mediated by electronic excitations. The findings demonstrate that solvent molecules actively participate in momentum transfer through fluctuating dipole moments, fundamentally altering our understanding of interfacial processes at the nanoscale. This discovery bridges fundamental physics and materials science, offering new insights into controlling particle motion using light-matter interactions rather than traditional thermal or frictional forces.
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Sursă care acoperăQuantum Zeitgeist
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100,000x Thinner Than Hair, Nanotubes Slowed by Light in Water
Quantum Zeitgeist3 min de cititArticolul și perspectiva sunt în engleză.
Ruhr University Bochum researchers found that light decelerates carbon nanotubes—100,000x thinner than a hair—in water, via a process called quantum.
One hundred thousand times thinner than a human hair, carbon nanotubes were observed slowing down in water not through friction, but through light, in experiments conducted at Ruhr University Bochum. Researchers Sebastian Kruss, Marialore Sulpizi, and Martina Havenith discovered a counterintuitive effect: increasing light intensity actually decreases the nanotubes’ movement, a phenomenon they’ve termed. The…
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