9 papers
Topological Tricritical Ising Universality Class in One Dimension
Sheng Yang, Hai-Qing Lin, Xue-Jia Yu
Recent advances have revealed that quantum critical universality can be enriched by nontrivial topology. Here we study the tricritical point of the one-dimensional cluster O Brien-…
Boundary Criticality at the Nishimori Multicritical Point
Sheng Yang, Xinyu Sun, Shao-Kai Jian
We study boundary criticality at the Nishimori multicritical point of the two-dimensional (2D) random-bond Ising model. Using tensor-network methods, we construct a family of micro…
Generalized Li-Haldane Correspondence in Critical Dirac-Fermion Systems
Yuxuan Guo, Sheng Yang, Xue-Jia Yu
Topological phenomena in quantum critical systems have recently attracted growing attention, as they go beyond the traditional paradigms of condensed matter and statistical physics…
Anomalous Dynamical Scaling at Topological Quantum Criticality
Menghua Deng, Sheng Yang, Chen Sun +2
We study the nonequilibrium driven dynamics at topologically nontrivial quantum critical points (QCPs), and find that topological edge modes at criticality give rise to anomalous d…
Topological Quantum Criticality in Quasiperiodic Ising Chain
Sheng Yang, Hai-Qing Lin, Xue-Jia Yu
Topological classifications of quantum critical systems have recently attracted growing interest, as they go beyond the traditional paradigms of condensed matter and statistical ph…
Quantum Strong-to-Weak Spontaneous Symmetry Breaking in Decohered One Dimensional Critical States
Yuxuan Guo, Sheng Yang, Xue-Jia Yu
Symmetry breaking has been a central theme in classifying quantum phases and phase transitions. Recently, this concept has been extended to the mixed states of open systems, attrac…