27 citations · 68 across the 5 of their papers we have counts for
5 papers
Theory of charge-6e condensed phase in Kagome lattice superconductors
Tong-Yu Lin, Feng-Feng Song, Guang-Ming Zhang
We develop a Ginzburg-Landau theory for commensurate pair density wave (PDW) states in a hexagonal lattice system, relevant to the kagome superconductors . Compared…
Unified tensor network theory for frustrated classical spin models in two dimensions
Feng-Feng Song, Tong-Yu Lin, Guang-Ming Zhang
Frustration is a ubiquitous phenomenon in many-body physics that influences the nature of the system in a profound way with exotic emergent behavior. Despite its long research hist…
Tensor network approach to the fully frustrated XY model on a kagome lattice with a fractional vortex-antivortex pairing transition
Feng-Feng Song, Guang-Ming Zhang
We have developed a tensor network approach to the two-dimensional fully frustrated classical XY spin model on the kagome lattice, and clarified the nature of the possible phase tr…
Two-stage melting of an inter-component Potts long-range order in two dimensions
Feng-Feng Song, Guang-Ming Zhang
Interplay of topology and competing interactions can induce new phases and phase transitions at finite temperatures. We consider a weakly coupled two-dimensional hexatic-nematic XY…
Tensor network approach to the two-dimensional fully frustrated XY model and a chiral ordered phase
Feng-Feng Song, Guang-Ming Zhang
A general framework is proposed to solve the two-dimensional fully frustrated XY model for the Josephson junction arrays in a perpendicular magnetic field. The essential idea is to…