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Hanbury Brown–Twiss Interference of Anyons

Gabriele Campagnano, Oded Zilberberg, Igor V. Gornyi, Dmitri E. Feldman, Andrew C. Potter, and Yuval Gefen
Phys. Rev. Lett. 109, 106802 – Published 6 September 2012
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Abstract

We present a study of a Hanbury Brown–Twiss interferometer realized with anyons. Such a device can directly probe entanglement and fractional statistics of initially uncorrelated particles. We calculate Hanbury Brown–Twiss cross correlations of Abelian Laughlin anyons. The correlations we calculate exhibit partial bunching similar to bosons, indicating a substantial statistical transmutation from the underlying electronic degrees of freedom. We also find qualitative differences between the anyonic signal and the corresponding bosonic or fermionic signals, indicating that anyons cannot be simply thought of as intermediate between bosons and fermions.

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  • Received 10 April 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.106802

© 2012 American Physical Society

Synopsis

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An Anyon Detector

Published 6 September 2012

A proposed interferometry experiment could detect quantum states, called anyons, which are neither bosons nor fermions.

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Authors & Affiliations

Gabriele Campagnano1, Oded Zilberberg1, Igor V. Gornyi2,3, Dmitri E. Feldman4, Andrew C. Potter5, and Yuval Gefen1

  • 1Department of Condensed Matter Physics, The Weizmann Institute of Science, Rehovot 76100, Israel
  • 2Institut für Nanotechnologie, Karlsruhe Institute of Technology, 76021 Karlsruhe, Germany
  • 3A. F. Ioffe Physico-Technical Institute, 194021 St. Petersburg, Russia
  • 4Department of Physics, Brown University, Providence, Rhode Island 02912, USA
  • 5Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

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Issue

Vol. 109, Iss. 10 — 7 September 2012

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