Quantum Phase Transitions of Quasi-One-Dimensional Heisenberg Antiferromagnets

Details Quantum Phase Transitions of Quasi-One-Dimensional Heisenberg Antiferromagnets Quantum Phase Transitions of Quasi-One-Dimensional Heisenberg Antiferromagnets

2003-10-27

arxiv.org/abs/cond-mat/0310619v1

Computer Simulation Studies in Condensed-Matter Physics XVI, Eds. D. P. Landau, S. P. Lewis, and H.-B. Schuttler, 61 (Springer

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures, proceedings for the 16th Annual Workshop "Recent Developments in Computer Simulation Studies in Condensed

Scientific paper

We study the ground-state phase transitions of quasi-one-dimensional quantum Heisenberg antiferromagnets by the quantum Monte Carlo method with the continuous-time loop algorithm and finite-size scaling. For a model which consists of S=1 chains with bond alternation coupled on a square lattice, we determine the ground state phase diagram and the universality class of the quantum phase transitions.

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