178 citations · 1.1k across the 73 of their papers we have counts for
73 papers
Entanglement entropy for scale-invariant states: universal finite-size scaling
Huan-Qiang Zhou, Qian-Qian Shi, Ian P. McCulloch +1
A universal finite system-size scaling analysis of the entanglement entropy is presented for highly degenerate ground states arising from spontaneous symmetry breaking with type-B…
Goldstone modes and the golden spiral in the ferromagnetic spin-1 biquadratic model
Huan-Qiang Zhou, Qian-Qian Shi, Ian P. McCulloch +1
Ferromagnetic ground states have often been overlooked in comparison to seemingly more interesting antiferromagnetic ground states. However, both the physical and mathematical stru…
Instability of the Luttinger liquids towards an exotic quantum state of matter with highly degenerate ground states: an anisotropic extension of the ferromagnetic spin-1 biquadratic model
Qian-Qian Shi, Yan-Wei Dai, Sheng-Hao Li +1
An extensive investigation, both numerical and analytical, is performed for an anisotropic extension of the ferromagnetic spin-1 biquadratic model. The ground state phase diagram a…
Absence of a critical nematic phase in the vicinity of the ferromagnetic point for the one-dimensional spin-1 bilinear-biquadratic model
Yan-Wei Dai, Qian-Qian Shi, Huan-Qiang Zhou +1
The absence of a critical nematic phase in the vicinity of the ferromagnetic point for the one-dimensional spin-1 bilinear-biquadratic model is demonstrated by means…
Fractal dimension and the counting rule of the Goldstone modes
Qian-Qian Shi, Yan-Wei Dai, Huan-Qiang Zhou +1
It is argued that there are a set of orthonormal basis states, which appear as highly degenerate ground states arising from spontaneous symmetry breaking with a type-B Goldstone mo…
Quantum coherence and spin nematic to nematic quantum phase transitions in biquadratic spin-1 and -2 XY chains with rhombic single-ion anisotropy
Rui Mao, Yan-Wei Dai, Sam Young Cho +1
We investigate quantum phase transitions and quantum coherence in infinite biquadratic spin-1 and -2 XY chains with rhombic single-ion anisotropy. All considered coherence measures…