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Showing 2025 · cond-mat.str-elShow all
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cond-mat.str-el2025
A sine-square deformation approach to quantum critical points in one-dimensional systems
Yuki Miyazaki, Shiori Tanigawa, Giacomo Marmorini +2
We propose a method to determine the quantum phase boundaries of one-dimensional systems using sine-square deformation (SSD). Based on the proposition, supported by several exactly…
cond-mat.str-el2025
Vortex Crystals in Tetrahedral Antiferromagnets: Fractional Charges and Topological Magnons
Tomoki Hirosawa, Alexander Mook, Maria Azhar
We report the formation of a vortex crystal in the tetrahedral antiferromagnetic order on a triangular lattice. The noncoplanar tetrahedral state consists of four su…