IBM researchers reached a significant milestone in the quest to send information between the "brains" on a chip using pulses of light through silicon instead of electrical signals on copper wires. The breakthrough -- a significant advancement in the field of "Silicon Nanophotonics" -- uses pulses of light rather than electrical wires to transmit information between different processors on a single chip, significantly reducing cost, energy and heat while increasing communications bandwidth between the cores more than a hundred times over wired chips. The new technology aims to enable a power-efficient method to connect hundreds or thousands of cores together on a tiny chip by eliminating the wires required to connect them. Using light instead of wires to send information between the cores can be as much as 100 times faster and use 10 times less power than wires, potentially allowing hundreds of cores to be connected together on a single chip, transforming today's large supercomputers into tomorrow's tiny chips while consuming significantly less power.

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