3 papers
cond-mat.str-el2025
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…
cond-mat.str-el2024
Quantum entanglement entropy and Tomonaga-Luttinger liquid to liquid transition in biquadratic spin-1 XY chain with rhombic single-ion anisotropy
Yan-Wei Dai, Yao Heng Su, Sam Young Cho +1
Quantum phase transitions (QPTs) are investigated in biquadratic spin- XY chain with rhombic single-ion anisotropy by using the ground state energy (GE), the bipartite entanglem…
cond-mat.str-el2024
Wigner-Yanase skew information, quantum entanglement and spin nematic quantum phase transitions in biquadratic spin-1 and spin-2 XY chains with single-ion anisotropies
Yan-Wei Dai, Sheng-Hao Li, Sam Young Cho +1
Quantum phase transitions (QPTs) between uniaxial or biaxial spin nematic (SN) phases are investigated in biquadratic spin-1 and spin-2 XY infinite chains with the rhombic- and uni…