Posted on 02/16/2021 6:23:28 AM PST by Red Badger
Ping!.....................
““You have a number of different ways of organizing that matrix, and we realized our d+d matrix for the orbital space was like a different form of the d+id matrix that describes helium-3 pairing in spin space,” Nica said.
Si said the associations with superfluid helium-3 pairing states have helped him and Nica advance a more complete description of pairing states in both iron-based and heavy-fermion superconductors.
“As Emil and I talked more, we realized the periodic table for superconducting pairing was incomplete,” Si said, referring to the chart physicists use to organize superconducting pairing states.
“We use symmetries — like lattice or spin arrangements, or whether time moving forward versus backward is equivalent, which is time-reversal symmetry — to organize possible pairing states,” he said. “Our revelation was that d+id can be found in the existing list. You can use the periodic table to construct it. But d+d, you cannot. It’s beyond the periodic table, because the table doesn’t include orbitals.””
Well, DUH!
The infidelity of electrons seems to be common.
If we can transgender them, it would be long until my Chev pick up will be levitating.
Tech Ping
Look! Up in the sky! It’s a bird! It’s a plane!
No! It’s subject matter that’s over my head!
very cool thanks for posting
I maxed out in college in Physical Chemistry, trying to understand Hamiltonians and eigen values, This stuff is... hard
Well, I never confused my d+d for d+id ever! Duh!
I’m an electrical engineer and this went waaaaaay over my head.....
Good grief! Everyone knows that’s unobtainium!
Ge the dam non-resident chinks outta this country!
Mathematicians tend to name important concepts after themselves, it totally throws people like me who do not see value in memorizing names and associating them with concepts. It would be better if things like “eigenvalues” were named for what they are and not after the German or French dude that discovered them.
Here’s MY layman’s take on it:
Electrons spin.
Some electrons spin, let’s call it - clockwise.
Other electrons spin, lets call it - counter clockwise.
Electrons in ordinary room temperature matter are randomly distributed
and spinning in random patterns.
But, sometimes, electrons that spin is the same direction will ‘stick together’ and sync their spins.
Get enough of these electrons to sync up and they will superconduct.
This seems to happen in ferrous materials more often than in non ferrous materials..................
eigenvectors, eigenvalues, eigenvalue, etc are not named for a discoverer,. “eigen” means true or characteristic in German, and if you understood them you would see why it is a good, descriptive name. The are the orthogonal basis vectors, or functions in function space, and coordinates ( components) in the associated coordinate or function space.
I believe those would be positrons.>>>>>>>>
Bring on a stable, isotopic form of Muscovium.
Everything else seems to be waiting for it.
Thanks for the ping. A little too esoteric for the Windows List, but VERY interesting!
Thank you for the dumbed-down version for me.......
My take on the practical application is that they now have a superconductor at room temperatures.
That is a huge discovery if true.....
AND a even bigger plus, it’s CHEAP!..................
They are related. "d+d" is the old Dungeons and Dragons, for real. "d+id" is the newer Dungeons and Imaginary Dragons. The rules for the latter are rather complex.
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