Classical and quantum behavior of the integrated density of states for a randomly perturbed lattice

Details Classical and quantum behavior of the integrated density of states for a randomly perturbed lattice Classical and quantum behavior of the integrated density of states for a randomly perturbed lattice

2010-12-12

arxiv.org/abs/1012.2508v1

Annales Henri Poincare 2010, Vol. 11, Issue 6, 1053-1083

Mathematics

Probability

27 pages

Scientific paper

10.1007/s00023-010-0051-6

The asymptotic behavior of the integrated density of states for a randomly perturbed lattice at the infimum of the spectrum is investigated. The leading term is determined when the decay of the single site potential is slow. The leading term depends only on the classical effect from the scalar potential. To the contrary, the quantum effect appears when the decay of the single site potential is fast. The corresponding leading term is estimated and the leading order is determined. In the multidimensional cases, the leading order varies in different ways from the known results in the Poisson case. The same problem is considered for the negative potential. These estimates are applied to investigate the long time asymptotics of Wiener integrals associated with the random potentials.

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