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Title: Weak disorder expansion of the invariant measure for the one-dimensional Anderson model

Journal Article · · J. Stat. Phys.; (United States)
DOI:https://doi.org/10.1007/BF01028469· OSTI ID:6140345

We show that the formal perturbation expansion of the invariant measure for the Anderson model in one dimension has singularities at all energies E/sub 0/ = 2 cos ..pi..(p/q); we derive a modified expansion near these energies that we show to have finite coefficients to all orders. Moreover, we show that the first q - 3 of them coincide with those of the naive expansion, while there is an anomaly in the (q - 2)th term. This also gives a weak disorder expansion for the Liapunov exponent and for the density of states. This generalizes previous results of Kappus and Wegner and of Derrida and Gardner.

Research Organization:
Univ. of California, Irvine (USA)
OSTI ID:
6140345
Journal Information:
J. Stat. Phys.; (United States), Vol. 51:3-4
Country of Publication:
United States
Language:
English