Science, Space and Technology News 2024
A novel vortex phenomenon involving photon interactions was identified by scientists, potentially enhancing quantum computing. Through experiments with dense rubidium gas, they observed unique phase shifts that mimic other vortices but are distinct in their quantum implications. Credit: SciTechDaily.com
When the gas cloud was at its densest and the photons were close to each other, they exerted the highest level of mutual influence.“When the photons pass through the dense gas cloud, they send a number of atoms into electronically excited states known as Rydberg states,” Firstenberg explains. “In these states, one of the electrons in thestarts moving in an orbit that is 1,000 times wider than the diameter of an unexcited atom.
Over time, the Weizmann scientists managed to create a dense, ultracold gas cloud, packed with atoms. As a result, they achieved something unprecedented: photons that underwent a phase shift of 180-degrees – and sometimes more. When the gas cloud was at its densest and the photons were close to each other, they exerted the highest level of mutual influence. But when the photons moved away from each other or the atomic density around them dropped, the phase shift weakened and disappeared.
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