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‘Virtually unhackable’ chip could make GPU more energy efficient and much faster in AI – by combining light and silicon for a fundamental mathematical operation

A groundbreaking new chip developed by Penn Engineers uses light waves instead of electricity for AI calculations, marking a potentially significant leap in processing speeds and energy efficiency.

The chip, based on silicon photonics (SiPh), combines Penn Professor Nader Engheta’s esteemed research into manipulating nanoscale materials to perform mathematical calculations using light, with the SiPh platform using silicon, a cheap and abundant element in computer chips.