Disordered Pinned Anyons in Two Dimensions

ORAL

Abstract

We consider the effect of disorder on the behavior of pinned anyons in two spatial dimensions. Within an approximate numerical strong disorder renormalization group (SDRG) treatment, we find that both Fibonacci and Majorana anyons exhibit flows back to weaker disorder rather than toward infinite randomness phases such as those they exhibit in d=1. Restricting to the technically simpler Majorana anyons, we map out the effects of sign and coupling strength disorder on the proposed translation invariant topological liquid found in the absence of disorder. In disordered Hall bars, the nature of this descendant phase, and in particular its localization properties, may be relevant to the interpretation of transport and non-Abelian interferometry.

Authors

  • Chris Laumann

    Harvard University, Harvard

  • David Huse

    Princeton University

  • Andreas Ludwig

    Dept. of Physics, University of California, Santa Barbara, UCSB, University of California, Santa Barbara

  • Gil Refael

    California Institute of Technology, Caltech

  • Simon Trebst

    UCSB, Microsoft Station Q, UCSB

  • Matthias Troyer

    ETH Zurich, Theoretische Physik, ETH Zurich