Numerical tensor-network results locate a critical point at theta=pi in the 2D CP(1) model, consistent with Haldane's conjecture.
Critical Behavior of CP^1 at theta = pi, Haldane's Conjecture and the Universality Class
1 Pith paper cite this work. Polarity classification is still indexing.
1
Pith paper citing it
abstract
Using an approach to analyze the theta dependence of systems with a theta-term we recently proposed, the critical behavior of CP^1 at theta=pi is studied. We find a region outside the strong coupling regime where Haldane's conjecture is verified. The critical line however does not belong to the universality class of the Wess-Zumino-Novikov-Witten model at topological coupling k=1 since it shows continuously varying critical exponents.
fields
hep-lat 1years
2025 1verdicts
CONDITIONAL 1representative citing papers
citing papers explorer
-
Phase structure analysis of CP(1) model with $\theta$ term by tensor renormalization group
Numerical tensor-network results locate a critical point at theta=pi in the 2D CP(1) model, consistent with Haldane's conjecture.