62 citations · 149 across the 5 of their papers we have counts for
9 papers
Quantum phase transitions in the spin-1 Kitaev-Heisenberg chain
Wen-Long You, Gaoyong Sun, Jie Ren +2
Recently, it has been proposed that higher-spin analogues of the Kitaev interactions may also occur in a number of materials with strong Hund's and spin-orbit coupling. In th…
Topological phases of spinless -orbital fermions in zigzag optical lattices
Gaoyong Sun, Wen-Long You, Tao Zhou
Motivated by the experiment [St-Jean {\it et al}., Nature Photon. {\bf 11}, 651 (2017)] on topological phases with collective photon modes in a zigzag chain of polariton micropilla…
Anomalous Spontaneous Symmetry Breaking in non-Hermitian Systems with Biorthogonal Z2-symmetry
Meng-Lei Yang, Heng Wang, Cui-Xian Guo +3
Landau's spontaneous symmetry breaking theory is a fundamental theory that describes the collective behaviors in many-body systems. It was well known that for usual spontaneous sym…
Dynamical quantum phase transitions in a spin chain with deconfined quantum critical points
Gaoyong Sun, Bo-Bo Wei
We analytically and numerically study the Loschmidt echo and the dynamical order parameters in a spin chain with a deconfined phase transition between a dimerized state and a ferro…
Dynamical Scaling Laws of Out-of-Time-Ordered Correlators
Bo-Bo Wei, Gaoyong Sun, Myung-Joong Hwang
The out-of-time-ordered correlator (OTOC) is central to the understanding of information scrambling in quantum many-body systems. In this work, we show that the OTOC in a quantum m…
Fidelity as a probe for a deconfined quantum critical point
Gaoyong Sun, Bo-Bo Wei, Su-Peng Kou
Deconfined quantum critical point was proposed as a second-order quantum phase transition between two broken symmetry phases beyond the Landau-Ginzburg-Wilson paradigm. However, nu…