We study a class of random block operators which appear as effective one-particle Hamiltonians for the anisotropic XY quantum spin chain in an exterior magnetic field given by an array of i.i.d. random variables. For arbitrary non-trivial single-site distribution of the magnetic field, we prove dynamical localization of these operators at non-zero energy.
CITATION STYLE
Chapman, J., & Stolz, G. (2015). Localization for Random Block Operators Related to the XY Spin Chain. Annales Henri Poincare, 16(2), 405–435. https://doi.org/10.1007/s00023-014-0328-2
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