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Statistics of Fractionalized Excitations through Threshold Spectroscopy
Stockholm University, Faculty of Science, Department of Physics. Center for Theoretical Physics, USA; Arizona State University, USA; Shanghai Jiao Tong University, China.
Number of Authors: 4
2017 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 118, no 22, 227201Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2017. Vol. 118, no 22, 227201
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-145256DOI: 10.1103/PhysRevLett.118.227201ISI: 000404624800010PubMedID: 28621969OAI: oai:DiVA.org:su-145256DiVA: diva2:1128449
Available from: 2017-07-25 Created: 2017-07-25 Last updated: 2017-07-25Bibliographically approved

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