Researchers demonstrated a way to manipulate electrons in graphene using pulses of light that last less than one thousands trillionth (one quadrillionth) of a second. By leveraging a quantum effect known as tunneling, they recorded electrons bypassing a physical barrier almost instantaneously, a feat that redefines the potential limits of computer processing power. A study ...

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Link :
https://www.nextbigfuture.com/2025/05/worlds-first-petahertz-speed-phototransistor-at-room-temperature.html