Two interacting particles in a random potential |
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Authors: | D O Krimer R Khomeriki S Flach |
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Institution: | 1.Max Planck Institute for the Physics of Complex Systems,Dresden,Germany;2.Theoretische Physik,Universit?t Tübingen,Tübingen,Germany;3.Physics Department,Tbilisi State University,Tbilisi,Georgia |
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Abstract: | We study the scaling of the localization length of two interacting bosons in a one-dimensional random lattice with the single
particle localization length. We consider the short-range interaction assuming that the particles interact when located both
on the same site. We discuss several regimes, among them one interesting weak Fock space disorder regime. In this regime we
obtain a weak logarithmic scaling law. Numerical benchmark data support the absence of any strong enhancement of the two particle
localization length. |
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Keywords: | |
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