this post was submitted on 25 Feb 2026
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Science

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Scientists may have spotted a long-sought triplet superconductor — a material that can transmit both electricity and electron spin with zero resistance. That ability could dramatically stabilize quantum computers while slashing their energy use. Early experiments suggest the alloy NbRe behaves unlike any conventional superconductor. If verified, it could become a cornerstone of next-generation quantum and spintronic technology.

essentially a conductor for "spin currents"

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[–] West_of_West@piefed.social 29 points 1 month ago* (last edited 1 month ago) (1 children)

"The fact that triplet superconductors have spin has an important consequence. We can now transport not only electrical currents but also spin currents with absolutely zero resistance," explained Linder.

That ability could make it possible to transmit information using spin without any energy loss. In turn, extremely fast computers could operate using almost no electricity at all.

I don't know what any of this means... but cool!

[–] SkaveRat@discuss.tchncs.de 19 points 1 month ago (1 children)

Still need massive amounts of energy to cool them down to superconducting temperatures

[–] ageedizzle@piefed.ca -2 points 1 month ago (1 children)

Well, if we had these aboard the International Space Station or a spaceship, we could simply choose to crank the heat down in the computer room. Might actually save energy in that case. 

Dream big! 

[–] SkaveRat@discuss.tchncs.de 26 points 1 month ago (1 children)

It is very hard to cool things down in space

[–] altphoto@lemmy.today 10 points 1 month ago

NbRe? Why not a computer made of rhino horn ivory?

[–] Alloi@lemmy.world 5 points 1 month ago
[–] mech@feddit.org 4 points 1 month ago (1 children)

So...does this mean it will soon be able to multiply two-digit numbers?

[–] SmoothOperator@lemmy.world 5 points 1 month ago (1 children)

It would be a terrible machine for that. Never use a quantum computer to multiply numbers.

[–] mech@feddit.org 2 points 1 month ago (1 children)

Isn't that kind of a thing it needs to do to find the factorials of large numbers to break traditional encryption?

[–] SmoothOperator@lemmy.world 2 points 1 month ago

Not really. It needs to apply unitary operators to elements in Hilbert space, which is essentially multiplying matrices onto vectors.

Which you could do by multiplying the involved numbers one by one, as most classical methods would, but then you're missing the point of using a quantum computer.

[–] GreenKnight23@lemmy.world 2 points 1 month ago

just in time for all the bad press it got last week!