Recent content by Baisl

It is not clear to me, but it is possible that indeed you can see the quantization as arising from the winding number of the phase over the cycles of the torus. Note however that they make explicit use of single-valuedness in (2.12) But what I don't understand is why is it not possible to gauge...

Hi, I actually took the example from the review https://arxiv.org/pdf/0907.2021v1.pdf (Section II. ADIABATIC TRANSPORT AND ELECTRIC POLARIZATION, pages 8 and 9) There you can see that they use single-valuedness to show that the Berry phase must be ##2 \pi n, n \in \mathbb{Z} ##. What I find...

Many thanks for your reply DrDu! Let me first try to understand your point: I see precisely what you mean up to here. Could you write down a few formulas to show how the finite magnetic field arises from the smearing? So you're saying that non-integer ##\Omega/\Omega_0## corresponds to having...

Hi, I have a question that has been bugging me recently. It's about the berry phase and something that I find contradictory. One can see that it is possible to get rid of 2π x (integer) part of the Berry phase by means of a gauge transformation. This in general applies to phases (gauge...