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Article overview
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Disorder-induced Majorana metal in interacting non-Abelian anyon systems | Chris R. Laumann
; Andreas W.W. Ludwig
; David A. Huse
; Simon Trebst
; | Date: |
30 Jun 2011 | Abstract: | We demonstrate that a thermal metal of Majorana fermions forms in a
two-dimensional system of interacting non-Abelian (Ising) anyons in the
presence of moderate disorder. This bulk metallic phase arises in the $
u=5/2$
quantum Hall state when disorder pins the anyonic quasiparticles. More
generally, it naturally occurs for various proposed systems supporting Majorana
fermion zero modes when disorder induces the random pinning of a finite density
of vortices. This includes all two-dimensional topological superconductors in
so-called symmetry class D. A distinct experimental signature of the thermal
metal phase is the presence of bulk heat transport down to zero temperature. | Source: | arXiv, 1106.6265 | Services: | Forum | Review | PDF | Favorites |
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