Thermal analog computer uses tiny silicon structures/ device's excess heat conduction, achieving 99% accurate matrix multiplication

https://techxplore.com/news/2026-01-tiny-silicon-accurate-matrix-multiplication.html

"heat diffusing through silicon grid's pores whose geometry determines how heat flows, calculating result encoded as continuous temperature values collected by thermostat... >99% accurate matrix-vector multiplication, backbone of LLMs/ AI... separate structures for positive/ negative components, subtracting results... thermal management without additional battery power/ extra sensors... energy efficient programmable structures/ sequential operations... future: scaling, bandwidth, long distance accuracy"