[ExI] There is no speed limit in the superfluid universe

John Clark johnkclark at gmail.com
Mon Sep 21 14:54:21 UTC 2020


Researchers report in Nature Communications that they found when Helium-3
is cooled to 0.0001K  a wire moving through it feels no resistance even
when the wire is moving very rapidly. Lead author Dr. Samuli Autti
said: "*Superfluid
helium-3 feels like a vacuum to a rod moving through it, although it is a
relatively dense liquid. There is no resistance, none at all. I find this
very intriguing.*"

The article says this discovery could aid in "*studies of Majorana fermions
aimed at producing components of, say, a quantum computer*". Majorana
fermions would be far less susceptible to quantum decoherence than normal
particles and thus allow the construction of Topological Quantum Computers
which, because of their much lower error rate, could be scaled up to
arbitrary size.

dissipation due to bound fermions in the zero-temperature limit
<https://www.nature.com/articles/s41467-020-18499-1>

John K Clark
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