Categories: SCIENCE

Light has been seen leaving an atom cloud before it entered


Light can get away with an impossibly fast journey due to quantum fuzziness

Михаил Руденко/Getty Images/iStockphoto

In the quantum realm, seemingly impossible things are happening every day. Thanks to quantum effects, a particle of light can exit a cloud of extremely cold atoms before it even enters.

When light goes into a material, its speed changes as its particles, or photons, interact with the atoms around them. Atoms inside a material absorb and then release any photons that enter, causing a delay in their travel time. But…



Source link

fromermedia@gmail.com

Share
Published by
fromermedia@gmail.com

Recent Posts

why scientists are joining the rush to Bluesky

Bluesky has been growing rapidly since 2023.Credit: Matteo Della Torre/NurPhoto/ShutterstockResearchers are flocking to the social-media…

10 hours ago

Bacteria found on a space rock turn out to be Earth-grown

Be wary of claims of alien life in samples from space, say researchers who found…

12 hours ago

Chimps tickle and wrestle in play to pave the way for teamwork

Adult chimpanzees (Pan troglodytes) play together to promote cooperation and ease tension, according to field…

12 hours ago

Next-generation snakebite therapies could reduce death toll

A spitting cobra can deliver venom either through a bite or by ejecting it from…

12 hours ago

Swallowable injections: the octopus-inspired pill that delivers drugs with a jet

Nature, Published online: 20 November 2024; doi:10.1038/d41586-024-03824-1Can jets of drugs from pressurized capsules replace needles?…

15 hours ago

Students and grandmothers step up where mental health-care is in short supply

Hello Nature readers, would you like to get this Briefing in your inbox free every…

15 hours ago