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[Fizinfo] Wigner SZFI Szeminárium

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  • From: Janos Asboth <janos.asboth AT>
  • To: fizinfo AT
  • Subject: [Fizinfo] Wigner SZFI Szeminárium
  • Date: Fri, 21 Jun 2013 14:03:06 +0200
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  • List-id: ELFT HÍRADÓ <>

Wigner FK SZFI Szeminárium

Jonathan Edge (Lorentz Institute, Leiden University):
"Metallic phase of the quantum Hall effect in four-dimensional space"

We study the phase diagram of the quantum Hall effect in four-dimensional
(4D) space. Unlike in 2D, in 4D there exists a metallic as well as an
insulating phase, depending on the disorder strength. The critical exponent
$ uapprox 1.2$ of the diverging localization length at the quantum Hall
insulator-to-metal transition differs from the semiclassical value $ u=1$
of 4D Anderson transitions in the presence of time-reversal symmetry. Our
numerical analysis is based on a mapping of the 4D Hamiltonian onto a 1D
dynamical system, providing a route towards the experimental realization of
the 4D quantum Hall effect.

Phys. Rev. Lett. 109, 135701 (2012)

Időpont: 2013. június 27. (csütörtök) 10:00
Hely: MTA Wigner FK SZFI, I. épület 1. emeleti Tanácsterem

Részletes információ (tartalmi kivonat):

Minden érdeklődőt szívesen látunk!
Asbóth János

  • [Fizinfo] Wigner SZFI Szeminárium, Janos Asboth, 06/21/2013

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