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37 papers · 2 filters
Momentum polarization: an entanglement measure of topological spin and chiral central charge
Hong-Hao Tu, Yi Zhang, Xiao-Liang Qi
Topologically ordered states are quantum states of matter with topological ground state degeneracy and quasi-particles carrying fractional quantum numbers and fractional statistics…
Measurement of Coherent Polarons in the Strongly Coupled Antiferromagnetically Ordered Iron-Chalcogenide Fe1.02Te using Angle-Resolved Photoemission Spectroscopy
Zhongkai Liu, Ruihua He, Donghui Lu +12
The nature of metallicity and the level of electronic correlations in the antiferromagnetically ordered parent compounds are two important open issues for the iron-based supercondu…
Kerr effect as evidence of gyrotropic order in the cuprates
Pavan Hosur, A. Kapitulnik, S. A. Kivelson +2
The Kerr effect can arise in a time-reversal invariant dissipative medium that is "gyrotropic", i.e. one that breaks inversion () and all mirror symmetries. Examples of…
Formation and consequences of heavy d-electron quasiparticles in Sr3Ru2O7
M. P. Allan, A. Tamai, E. Rozbicki +18
We report angle-resolved photoelectron spectroscopy measurements of the quantum critical metal Sr3Ru2O7 revealing itinerant Ru 4d-states confined over large parts of the Brillouin…
Competition between antiferromagnetic and charge density wave order in the half filled Hubbard-Holstein model
E. A. Nowadnick, S. Johnston, B. Moritz +2
We present a determinant quantum Monte Carlo study of the competition between instantaneous on-site Coulomb repulsion and retarded phonon-mediated attraction between electrons, as…
Momentum-space instantons and maximally localized flat-band topological Hamiltonians
Chao-Ming Jian, Zheng-Cheng Gu, Xiao-Liang Qi
Recently, two-dimensional band insulators with a topologically nontrivial (almost) flat band has been studied extensively, which can realize integer and fractional quantum Hall eff…