University of Birmingham > Talks@bham > Cold Atoms > A microwave realization of the Random Dimer Model

A microwave realization of the Random Dimer Model

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  • UserPetronela Bauer (Hamburg)
  • ClockMonday 13 September 2010, 15:00-16:00
  • HousePhysics East 217.

If you have a question about this talk, please contact Vincent Boyer.

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Anderson localization occurs always in less than three dimensions in presence of white noise disorder. But when introducing correlations, as like is the case of the Random Dimer Model, a subset of eigenstates can be delocalized. It is a case of short-range correlation, here neighboring sites of identical site energy are assigned to appear as pairs, thus forming a dimer (1). This presentation is about the preparations towards an experimental study of the localization-delocalization transition in a one dimensional Random Dimer Model by emulating the tight-binding model in a microwave cavity with two types of dielectric scatterers. Recently the Anderson tight-binding model was successfully emulated with this experimental setup in order to investigate transport properties of Graphene like structures (2,3).

  1. D.Dunlap & al. “Absence of localization in a Random Dimer Model” Phys. Rev. Lett. 65, 88 (1990)
  2. U.Kuhl & al. ” Dirac point and edge states in a microwave realization of tight-binding graphene-like structures” Phys. Rev. B 82, 1(2010)
  3. E.Sadurni & al. “Playing relativistic billiards beyond graphene” New J. Phys. 12 (2010) 053014

This talk is part of the Cold Atoms series.

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