Exciton-polaritons (hybrid light-matter particles) generated to interact strongly enough to perform logical computations

https://www.eurekalert.org/news-releases/1128446

"trap light between thin layers of semiconductor crystal, forcing photon/ electron blending at room temperature (used to need ultra-cold)... allows optical computing light manipulation directly within chip, with ultra-fast state switching, generating nearly 0 heat... direct alternative to power-hungry silicon transistors... paves the way for energy-efficient optical AI processors capable of handling massive workloads without the massive energy and cooling constraints of modern data centers"