Density matrix renormalisation group study of the correlation function of the bilinear-biquadratic spin-1 chain

Details Density matrix renormalisation group study of the correlation function of the bilinear-biquadratic spin-1 chain Density matrix renormalisation group study of the correlation function of the bilinear-biquadratic spin-1 chain

1994-06-17

arxiv.org/abs/cond-mat/9406076v2

J. Phys. A 28 (1994) 2109-2119

Physics

Condensed Matter

13 pages, Standard Latex File + 5 PostScript figures in separate (New version with SUBSTANTIAL REVISIONS to appear in J Phys A

Scientific paper

10.1088/0305-4470/28/8/005

Using the recently developed density matrix renormalization group approach, we study the correlation function of the spin-1 chain with quadratic and biquadratic interactions. This allows us to define and calculate the periodicity of the ground state which differs markedly from that in the classical analogue. Combining our results with other studies, we predict three phases in the region where the quadratic and biquadratic terms are both positive.

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