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Award ID contains: 2053285

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  1. ; ; (, Mathematika)
  2. ; ; ; (, Journal of Physics A: Mathematical and Theoretical)
    null (Ed.)
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  3. ; (, International Mathematics Research Notices)
    Abstract We study discrete magnetic random Schrödinger operators on the square and honeycomb lattice. For the non-random magnetic operator on the hexagonal lattice with any rational magnetic flux, we show that the middle two dispersion surfaces exhibit Dirac cones. We then derive an asymptotic expansion for the density of states on the honeycomb lattice for oscillations of arbitrary rational magnetic flux. This allows us, as a corollary, to rigorously study the quantum Hall effect and conclude dynamical delocalization close to the conical point under disorder. We obtain similar results for the discrete random Schrödinger operator on the $$\mathbb Z^2$$-lattice with weak magnetic fields, close to the bottom and top of its spectrum. 
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  4. ; ; (, Annales Henri Poincaré)
    null (Ed.)
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