3 papers
cond-mat.str-el2026
Deconfined quantum critical point in a dissipative spin-1/2 chain
Longye Lu, Shifeng Cui, Wenan Guo
Open quantum spin systems offer a previously unexplored route to realizing deconfined quantum criticality. We consider a spin-1/2 - chain, consisting of an antiferromagneti…
cond-mat.str-el2026
Probing the Critical Behavior of a Sign-Problematic Model with Monte Carlo Simulations
Ye Ling, Yuting Wang, Wenan Guo +1
The sign-problematic generalized Baxter-Wu (GBW) model with asymmetric complex couplings is mapped onto a one-dimensional quantum model. Utilizing the model's exactly known critica…
cond-mat.str-el2026
Phase diagrams of S=1/2 bilayer Models of SU(2) symmetric antiferromagnets
Fan Zhang, Nisheeta Desai, Wenan Guo +1
We study the phase diagrams of models of bilayers of square lattices antiferromagnets with SU(2) Heisenberg symmetry that have 2, 4, and 6 spin exchanges. We study tw…