Serious question: Superconductors, how the fuck do they work?

>>8710849
Low temperature superconductors:
Electron-Electron pairs known as cooper pairs follow boson rules, which means they can all pile into the conduction band and move at basically the same speed without hitting eachother.

High temperature superconductors:
¯\_(ツ)_/¯ who knows

>>8710849
I don't wanna talk to a scientist

>>8710855
>which means they can all pile into the conduction band and move at basically the same speed
I'm no physicist, will the cooper pairs not collide with nuclei, slowing them down? Or is there something special about bosons I'm missing

>>8710889
im not really up to speed on superconductors. BCS theory is a lot more complicated though, and there's probably alot of detail i missed out, but that's the basics

>>8710908
Okay, thanks anyway

>>8710849
>>8710889

In solid state physics most particles are described as quasiparticles including their interactions. e.g. the interaction between electrons (which are actually also quasiparicles here) and nuclei can be described as creation or anihilation of a phonon (a lattice oscillation quasiparticle). This electron-phonon interaction is also the reason for the bound state and condensation to a cooper pair. The point is that the cooper pair state only works, if all the cooper pairs have the same momentum. that means if you have scattering of an electron that was in a cooper pair it will leave the cooper pair state, and so must the second electron. This costs energy, namely two times the energy between the cooper pair state and the single electron state (because you have 2 electrons leaving the CP). If you keep your temperature low enough, you will not have phonons with enough energy to interact with the cooper pairs.

t. guy who has solid state physics 2 exam in two weeks

>>8710969
thx
and good luck, man

>>8710989
thank you