6 papers
Metallic Gross-Neveu criticality and superconductivity on the SLAC fermion
Feng-Yu Zhang, Yin-Kai Yu, Zi-Xiang Li +1
The realization of Dirac criticality beyond the conventional Gross-Neveu-Yukawa (GNY) paradigm has become a major frontier in condensed matter physics. In this work, we introduce a…
Symmetric Mass Generation Transition and its Nonequilibrium Critical Dynamics in a Bilayer Honeycomb Lattice Model
Zhi-Xuan Li, Yin-Kai Yu, Zi-Xiang Li +1
Symmetric mass generation (SMG) transitions defy the conventional Landau-Ginzburg-Wilson paradigm by opening a many-body gap without spontaneous symmetry breaking or topological or…
Nonequilibrium Dynamics of Dirac Quantum Criticality in Imaginary Time
Yin-Kai Yu, Zhi Zeng, Yu-Rong Shu +2
Quantum criticality within Dirac fermions harbors a plethora of exotic phenomena, attracting sustained attention in the past decades. Here, we explore the imaginary-time relaxation…
Preempting Fermion Sign Problem: Unveiling Quantum Criticality through Nonequilibrium Dynamics in Imaginary Time
Yin-Kai Yu, Zhi-Xuan Li, Shuai Yin +1
The notorious fermion sign problem, arising from fermion statistics, presents a fundamental obstacle to the numerical simulation of quantum many-body systems. Here, we introduce a…
Magnetic order and novel quantum criticality in the strongly interacting quasicrystals
Cong Zhang, Yin-Kai Yu, Shao-Hang Shi +1
We present the sign-problem-free quantum Monte Carlo study of the half-filled Hubbard model on two-dimensional quasicrystals, revealing how specific aperiodic geometries fundamenta…
Finite-time scaling beyond the Kibble-Zurek prerequisite in Dirac systems
Zhi Zeng, Yin-Kai Yu, Zhi-Xuan Li +2
The conventional Kibble-Zurek mechanism and the finite-time scaling provide universal descriptions of the driven critical dynamics from gapped initial states based on the adiabatic…