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Hubble Telescope Upends Theory on How the Early Universe Cleared Its Cosmic Fog

Giovanni Sapere

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Physics

Quantum skyrmions on a chip survive after photon entanglement breaks down

Physicists at the University of Pennsylvania have demonstrated that topological patterns encoded in light can persist even after the quantum entanglement linking two photons breaks apart. The finding addresses one of the fundamental vulnerabilities of optical quantum networks, where environmental noise routinely destroys sensitive quantum links. By using an integrated silicon nitride circuit, the team showed that mathematical topology offers a resilient way to protect quantum states.

Letizia Giugliano

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