100 citations · 698 across the 29 of their papers we have counts for
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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…
Biorthogonal quantum criticality in non-Hermitian many-body systems
Gaoyong Sun, Jia-Chen Tang, Su-Peng Kou
We develop the perturbation theory of the fidelity susceptibility in biorthogonal bases for arbitrary interacting non-Hermitian many-body systems with real eigenvalues. The quantum…
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…