Criticality of the (2+1)-dimensional S=1 transverse-field Ising model with extended interactions: Suppression of corrections to scaling
arXiv:1003.1764 · doi:10.1016/j.nuclphysb.2010.03.002
Abstract
The criticality of the (2+1)-dimensional S=1 transverse-field Ising model is investigated with the numerical diagonalization method. The scaling behavior is improved by tuning the coupling-constant parameters; the S=1 spin model allows us to incorporate a variety of interactions such as the single-ion anisotropy and the biquadratic interactions. Simulating the clusters with N=6,8,...,20 spins, we estimate the critical indices as 1/ν=1.586(6) and η=0.034(4).
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Cited by in corpus (4)
- Universal critical behavior of the two-magnon-bound-state mass gap for the (2+1)-dimensional Ising model
- Critical behavior of the fidelity susceptibility for the d=2 transverse-field Ising model
- Magnon-bound-state hierarchy for the two-dimensional transverse-field Ising model in the ordered phase
- d=2 transverse-field Ising model under the screw-boundary condition: An optimization of the screw pitch