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Updated: Feb 28, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Statistics of Fractionalized Excitations through Threshold Spectroscopy
Siddhardh C Morampudi1, Ari M Turner2,3, Frank Pollmann1,4
1Max-Planck-Institut für Physik komplexer Systeme, 01187 Dresden, Germany.
Abstract:
We show that neutral anyonic excitations have a signature in spectroscopic measurements of materials: The low-energy onset of spectral functions near the threshold follows universal power laws with an exponent that depends only on the statistics of the anyons. This provides a route, using experimental techniques such as neutron scattering and tunneling spectroscopy, for detecting anyonic statistics in topologically ordered states such as gapped quantum spin liquids and hypothesized fractional Chern insulators. Our calculations also explain some recent theoretical results in spin systems.
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