5 papers · 1 filter
Studying line defect at Deconfined Quantum Criticality via fuzzy sphere regularization
Shutao Liu, Shuai Yang, Jie Lou +1
The interplay between bulk critical fluctuations and nontrivial topology can enrich defect physics and give rise to novel defect universality classes. Understanding the fate of suc…
Symmetry-breaking line defects embedded to a 3D critical bulk
Shuai Yang, Liang-dong Hu, Yan Chen +1
While spontaneous breaking of a discrete symmetry in one-dimensional classical systems with short-range interactions is absent, it is expected that a line defect embedded in a bulk…
Conformal Operator Flows of the Deconfined Quantum Criticality from to
Shuai Yang, Liang-dong Hu, Chao Han +2
The deconfined quantum critical point (DQCP), which separates two distinct symmetry-broken phases, was conjectured to be an example of (2+1)D criticality beyond the standard Landau…
Universal Rule for Topological Hopf Term via Dirac-Spin Coupling
Yan-Guang Yue, Shuai Yang, Zheng-Xin Liu +1
It is known that the topological Hopf term in two-dimensional (2D) spin systems can be derived by coupling to massless Dirac fermions. We establish a universal rule governing the g…
Numerical evidence for spin chirality emerging from itinerant ferromagnets in bands with Berry curvature
Shuai Yang, Zhiyu Dong, Yan Chen
The behavior of strongly interacting electrons in bands with Berry curvature is a problem of wide interest. In this paper, we study this problem by numerically studying a fluxed Hu…