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Phys. Rev. B 78, 075304 (2008) [14 pages]

Anderson localization from classical trajectories

Piet W. Brouwer
Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, New York 14853, USA

Alexander Altland
Institut für Theoretische Physik, Zülpicher Strasse 77, 50937 Köln, Germany
Suggestion
Received 7 February 2008; revised 6 June 2008; published 5 August 2008

We show that Anderson localization in quasi-one-dimensional conductors with ballistic electron dynamics, such as an array of ballistic chaotic cavities connected via ballistic contacts, can be understood in terms of classical electron trajectories only. At large length scales, an exponential proliferation of trajectories of nearly identical classical action generates an abundance of interference terms, which eventually leads to a suppression of transport coefficients. We quantitatively describe this mechanism in two different ways: the explicit description of transition probabilities in terms of interfering trajectories, and an hierarchical integration over fluctuations in the classical phase space of the array cavities.

©2008 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevB.78.075304
DOI: 10.1103/PhysRevB.78.075304
PACS: 05.45.Mt; 73.20.Fz; 73.23.-b
  • 05.45.Mt
    Quantum chaos; semiclassical methods
  • 73.20.Fz
    Weak or Anderson localization (surface/interface states)
  • 73.23.-b
    Electronic transport in mesoscopic systems
  • YEAR: 2008
KEYWORDS: Anderson model, ballistic transport, chaos, phase space methods

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