Smaller, faster, more energy efficient silicon-germanium transistor functions at extremely low temperatures required for quantum chips

https://www.eurekalert.org/news-releases/1099389

"modulation acceptor doping adjusts semiconductor by remote coupling... improves conductivity enabling better quantum chip control/ readability... achieved by doping insulating oxide layer instead of crystal itself... >4,000X higher conductivity, improved switch-on behavior... conventional transistors fail to achieve faster switching/ lower power consumption when in close proximity to ultra-cold quantum components, but oxide layer doping method remains effective"