3 papers
cond-mat.stat-mech2026
Collective Symmetry and Criticality from Single-Component Fluctuations
Chunhao Guo, Zhe Wang, Zheng Yan
Symmetry plays a fundamental role in modern physics by guiding the classification of phases and the construction of effective theories of critical systems. Identifying collective s…
cond-mat.str-el2026
Lee--Yang Zeros and Pseudocritical Drift in J-Q Néel Antiferromagnet--Valence-Bond Solid Transitions
Chunhao Guo, Zhe Wang, Danhe Wang +3
Square-lattice J-Q models provide a sign-problem-free setting for probing the quantum phase transition between Néel antiferromagnet and columnar valence-bond solid. We analyze this…
cond-mat.str-el2026
Universal and non-universal contributions of entanglement under different bipartitions
Zhe Wang, Chunhao Guo, Bin-Bin Mao +1
Entanglement entropy (EE) is a fundamental probe of quantum phases and critical phenomena, which was thought to reflect only bulk universality for a long time. Very recently, peopl…