Journal
PHYSICAL REVIEW LETTERS
Volume 121, Issue 7, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.077201
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Funding
- Ministry of Science and Technology of China through the National Key Research and Development Program [2016YFA0300502]
- key research program of the Chinese Academy of Sciences [XDPB0803]
- National Science Foundation of China [11421092, 11574359, 11674370]
- National Thousand-Young Talents Program of China
- Ministry of Science and Technology of China [2015CB921700]
- startup funds from Yale University
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The nontriviality of quantum spin liquids (QSLs) typically manifests in the nonlocal observables that signify their existence; however, this fact actually casts a shadow on detecting QSLs with experimentally accessible probes. Here, we provide a solution by unbiasedly demonstrating a dynamical signature of anyonic excitations and symmetry fractionalization in QSLs. Employing large-scale quantum Monte Carlo simulation and stochastic analytic continuation, we investigate the extended XXZ model on the kagome lattice, and find out that, across the phase transitions from Z(2) QSLs to different symmetry breaking phases, spin spectral functions can reveal the presence and condensation of emergent anyonic spinon and vison excitations, in particular, the translational symmetry fractionalization of the latter, which can be served as the dynamical signature of the seemingly ephemeral QSLs in spectroscopic techniques such as inelastic neutron or resonance (inelastic) x-ray scatterings.
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