Recent content by lyylynn

  1. L

    Graduate Why the crystal momentum k in 2D band structure is defined on a torus?

    Hi, Could someone help to explain that why for the 2 D system, like 2 dimensional electronic gas, the crystal momentum k in 2D band structure is defined on a torus? Thanks a lot.:)
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    Graduate Adiabatic Curvature - Deduce the Local Adiabatic Curvature K

    Hi, I am working on the Laughlin model of Quantum Hall Effect, which relates to the concept ' adiabatic curvature'. The paper didn't include much details, and I knew little about berry phase. Could some one please give me some idea that how is the local adiabatic curvature deduced? ( the...