Localization on quantum graphs with random vertex couplings

Details Localization on quantum graphs with random vertex couplings Localization on quantum graphs with random vertex couplings

2007-10-16

arxiv.org/abs/0710.3065v1

Physics

Mathematical Physics

Scientific paper

10.1007/s10955-008-9517-z

We consider Schr\"odinger operators on a class of periodic quantum graphs with randomly distributed Kirchhoff coupling constants at all vertices. Using the technique of self-adjoint extensions we obtain conditions for localization on quantum graphs in terms of finite volume criteria for some energy-dependent discrete Hamiltonians. These conditions hold in the strong disorder limit and at the spectral edges.

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