how in the absurd fuck do they get something that cold
Comment on Why are quantum computers these gorgeous golden chandelier
originalucifer@moist.catsweat.com 2 months ago
the methods required to maintain qubits are exotic.
nutsack@lemmy.world 2 months ago
reddithalation@sopuli.xyz 2 months ago
lots of fun techniques, a common one for getting down low enough where other methods become practical is stirling cryocoolers, and those are even on ebay for a few thousand (cascade refrigeration systems, and joule thompson coolers are also used), way down past that theres stuff like weird magnetic coolers, and dilution coolers All very interesting, reading about exotic cooling methods is fun.
fmstrat@lemmy.nowsci.com 2 months ago
With a refrigerator.
cows_are_underrated@feddit.org 2 months ago
That’s a very big refrigerator
KISSmyOS@feddit.org 2 months ago
And why in the absurd fuck would you use Fahrenheit for that.
Alabaster_Mango@lemmy.ca 2 months ago
This is the right answer. It’s a big cryogenic refrigerator called a Dilution Refrigerator. It’s fancy stuff. Needs Helium-4, which is more common, and Helium-3, which mostly comes from nuclear production.