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A comment on IBM unveils 127-qubit quantum processor. Parent comment

Re:IBM unveils 127-qubit quantum processor by ruuda on Tuesday November 16, 2021 @02:54PM (#29245600)
They hang from the ceiling because they use evaporative cooling (the high-energy particles escape, and the low-energy particles remain in the bucket), each lower stage a bit cooler than the one above it.
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Re:IBM unveils 127-qubit quantum processor by arghwhat on Tuesday November 16, 2021 @04:54PM (#29246804)
Also because it looks cool, which is only appropriate for a cooling system.
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Re:IBM unveils 127-qubit quantum processor by a9h74j on Tuesday November 16, 2021 @06:50PM (#29247768)
AFAIK, another reason to work downward, historically at least, was to lower an assembly into an open-neck dewar.
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