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28 March 2024
 
  » pubmed » pmid11017298

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Single parameter scaling in one-dimensional localization revisited
L I Deych ; A A Lisyansky ; B L Altshuler ;
Date 20 Mar 2000
Journal Phys Rev Lett, 84 (12), 2678-81
AbstractThe variance of the Lyapunov exponent is calculated exactly in the one-dimensional Anderson model with random site energies distributed according to the Cauchy distribution. We find a new significant scaling parameter in the system, and derive an exact analytical criterion for single parameter scaling which differs from the commonly used condition of phase randomization. The results obtained are applied to the Kronig-Penney model with the potential in the form of periodically positioned delta functions with random strength.
Source PubMed, pmid11017298
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