Multicomponents

[epolack]

API question to settle

• Possibility to have components for TermKinetic.kinetic_energies, RealSpaceMultiplication.potential to prevent loops on the components; but maybe in a second time (i.e., future PR). Implementing one at a time needed generalisations?
  It was what was done for the preconditioner before (e.g., hash 9869eb5)

Remaining points

∅

Future PR

• use a BlochWaves structure and BlochWave!!
• add occupation to BlochWaves
• not sure what to print by default (Base.show methods); maybe report to ψk::BlochWave.
• see for how to do in a memory friendly-way operations such that

  for (σ, n) in eachindex(ψk::BlochWave; region=[:components, :bands])

• Tullio.jl for when doing tricky stuff?

[epolack]

@mfherbst Could you give me some feedback on this PR? It takes quite some time to keep it up to date with the master branch.

[mfherbst]

Could you give me some feedback on this PR? It takes quite some time to keep it up to date with the master branch.

Understood. I'm pretty busy right now, but I'll do it as soon as I can.

[epolack]

Sure, Thanks! I just wanted to make sure you had it on your radar :)