Looks like this is just taking off
What’s more, Epstein is confident that even lower temperatures could be possible. “With the ytterbium-doped materials that we are using, I expect that we will be able to get below 100 K and theoretically 50 K is possible,â€
I am going to try to get that paper and read it when I can - I can think of some neat applications.... in space and here on earth...
