@article{dac40840d6d1436880214638f8d6abdc,
title = "Exceptional dynamics of interacting spin liquids",
abstract = "We show that interactions in quantum spin liquids can result in non-Hermitian phenomenology that differs qualitatively from mean-field expectations. We demonstrate this in two prominent cases through the effects of phonons and disorder on a Kitaev honeycomb model. Using analytic and numerical calculations, we show the generic appearance of exceptional points and rings depending on the symmetry of the system. Their existence is reflected in dynamical observables including the dynamic structure function measured in neutron scattering. The results point to different phenomenological features in realizable spin liquids that must be incorporated into the analysis of experimental data and also indicate that spin liquids could be generically stable to wider classes of perturbations.",
author = "Kang Yang and Daniel Varjas and Bergholtz, {Emil J.} and Sid Morampudi and Frank Wilczek",
note = "Funding Information: K.Y., D.V., and E.J.B. acknowledge funding from the Swedish Research Council (VR) and the Knut and Alice Wallenberg Foundation. S.M. acknowledges funding from the Tsung-Dao Lee Institute. F.W. is supported in part by the U.S. Department of Energy under Grant No. DE-SC0012567, by the European Research Council under Grant No. 742104, and by the Swedish Research Council under Contract No.335-2014-7424. Publisher Copyright: {\textcopyright} 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",
year = "2022",
month = oct,
doi = "10.1103/PhysRevResearch.4.L042025",
language = "English (US)",
volume = "4",
journal = "Physical Review Research",
issn = "2643-1564",
publisher = "American Physical Society",
number = "4",
}