Monte Carlo Calculation of the Spin-Stiffness of the Two-Dimensional Heisenberg Model

Abstract

Using a collective-mode Monte Carlo method (the Wolff-Swendsen-Wang algorithm), we compute the spin-stiffness of the two-dimensional classical Heisenberg model. We show that it is the relevant physical quantity to investigate the behaviour of the model in the very low temperature range inaccessible to previous studies based on correlation length and susceptibility calculations.

6 pages, latex, 3 postscript figures appended, DIM preprint 93-30

References in corpus (2)

• Wolff-Type Embedding Algorithms for General Nonlinear $\sigma$-Models
• Multi-Grid Monte Carlo III. Two-Dimensional O(4)-Symmetric Nonlinear $\sigma$-Model

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• Infinite-randomness criticality in a randomly layered Heisenberg magnet
• Spin Stiffness of Mesoscopic Quantum Antiferromagnets
• Helicity modulus and chiral symmetry breaking for boundary conditions with finite twist
• Finite-size scaling of the helicity modulus of the two-dimensional O(3) model