Ames Summer 97 Workshop on Device Technology -- QCA -II
Like RSFQ, initial demonstration devices of QCA logic will need to be super-cooled, assuming fabrication feature sizes in the tens of nanometers.
But unlike RSFQ (from what we know of RSFQ), the smaller the fabrication dimension, the higher the tolerable temperature, according to thermodynamic analyses.
Indeed, if one could eventually fabricate QCA devices in the realm of 2-5 nanometers, then they could operate at room temperature!