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MPA

Seminar

Critical phenomena in 2D disordered systems (3)

Ludwig, A (Santa Barbara)
Thursday 24 July 2008, 09:00-10:30

Seminar Room 1, Newton Institute

Abstract

(Thermal) Quantum Hall transition, and relationship to the 2D random bond Ising model / Nishimori fixed point; absence of metallic phase and relationship to Ising Kramers-Wannier duality. Metallic phase; metal-insulator transition. Scaling properties of the critical wavefunctions. Multifractality, in the bulk and at boundaries: the case of the 2D spin-orbit class metal insulator transition; direct numerical evidence of conformal symmetry. 2D SQHT: some exact results. 2D IQHT: multifractality.

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