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arXiv · 1102.0845

Hyperbolic Deformation Applied to S = 1 Spin Chains - Scaling Relation in Excitation Energy -

Hiroshi Ueda·Hiroki Nakano·Koichi Kusakabe·Tomotoshi Nishino
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Abstract

We investigate excitation energies of hyperbolically deformed S = 1 spin chains, which are specified by the local energy scale f_j^{~} = \cosh j λ, where j is the lattice index and λis the deformation parameter. The elementary excitation is well described by a quasiparticle hopping model, which is also expressed in the form of hyperbolic deformation. It is possible to estimate the excitation gap Δin the uniform limit λ\rightarrow 0, by means of a finite size scaling with respect to the system size N and the deformation parameter λ.

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Hiroshi Ueda, Hiroki Nakano, Koichi Kusakabe, Tomotoshi Nishino. 2011-02-04. Hyperbolic Deformation Applied to S = 1 Spin Chains - Scaling Relation in Excitation Energy -. https://doi.org/10.1143/jpsj.80.094001

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