Delocalised states in a 1D random system with Anderson's diagonal disorder

Details Delocalised states in a 1D random system with Anderson's diagonal disorder Delocalised states in a 1D random system with Anderson's diagonal disorder

2004-02-11

arxiv.org/abs/cond-mat/0402308v2

Physics

Condensed Matter

Disordered Systems and Neural Networks

Latex, 8 pages, 2 figures

Scientific paper

1D diagonally disordered chain with Frenkel exciton and long range exponential intersite interaction is considered. It is shown that some states of this disordered system are delocalised (extended) contrary to the popular statement that all states in 1D disordered system are localised. The theorem is established that for the Anderson's model of diagonal disorder one should expect the appearance of states with extended module. All statements are confirmed by computer simulations.

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