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1 vote
0 answers
87 views

What is natural about the Berry connection?

So I asked a similar question here and even though I still believe it's a valid question, the formulation may have been a bit too complicated to pique people's interest, so let me try to break it up ...
Andrew Yuan's user avatar
  • 2,123
1 vote
0 answers
62 views

Concise formulation of Berry phase as holonomy of "natural" connection

I've been trying to understand the Berry phase (abelian/non-abelian) as the holonomy of some "natural connection". I almost have all the pieces together, but there are a few parts that are a ...
Andrew Yuan's user avatar
  • 2,123
1 vote
0 answers
65 views

How does the fiber bundle perspective on geometric phase lead to a certain connection one-form?

I'm trying to understand why the relevant connection one-form when calculating geometric phase in quantum systems is $$\mathcal{A}_\psi(X):=i \text{Im}\langle \psi | X\rangle.$$ Set-up: I'll set the ...
fred's user avatar
  • 123
1 vote
1 answer
467 views

Is it possible understand Berry curvature as Gaussian curvature in some limit?

I would like to understand the Berry curvature and the Chern number from mathematical geometry-topology. I understand that in electronic QHE, there is a map from $k^2$ to a vector space where the ...
Hoja's user avatar
  • 13