4 papers
Cavity-Induced Excitonic Insulation and Non-Fermi-Liquid Behavior in Dirac Materials
Yuxuan Guo, Yuto Ashida
We investigate two-dimensional Dirac fermions embedded in a deep-subwavelength cavity formed by high-impedance metasurfaces. We point out that, unlike conventional metallic boundar…
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…
Current-tunable room temperature ferromagnetism and current-driven phase transitions
Jianping Guo, Peng Rao, Xinhao Huang +9
It is generally assumed that the application of a charge-current in ferromagnetic metals suppresses their ferromagnetic order through trivial Joule heating. Here, we demonstrate th…
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…