Pinch point singularities of tensor spin liquids
Name
PhysRevB.98.165140.pdf
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374.14 KB
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Author(s)
Prem, Abhinav
Chou, Yang-Zhi
Pretko, Michael
Nandkishore, Rahul M.
Vijay, Sagar
Date Issued
October 2018
Journal
Physical Review B
Publisher
American Physical Society
Citation
Prem, Abhinav et al. "Pinch point singularities of tensor spin liquids." Physical Review B 98, 16 (October 2018): 165140 © 2018 American Physical Society
Version
Final published version
Abstract
Recently, a new class of three-dimensional spin liquid models have been theoretically discovered, which feature generalized Coulomb phases of emergent symmetric tensor U(1) gauge theories. These “higher rank” tensor models are particularly intriguing due to the presence of quasiparticles with restricted mobility, such as fractons. We investigate universal experimental signatures of tensor Coulomb phases. Most notably, we show that tensor Coulomb spin liquids (both quantum and classical) feature characteristic pinch point singularities in their spin-spin correlation functions, accessible via neutron scattering, which can be readily distinguished from pinch points in conventional U(1) spin liquids. These pinch points can thus serve as a crisp experimental diagnostic for such phases. We also tabulate the low-temperature heat capacity of various tensor Coulomb phases, which serves as a useful additional diagnostic in certain cases.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.98.165140
