Physics – Condensed Matter
Scientific paper
1994-06-17
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.
Bursill Robert J.
Gehring Gillian A.
Xiang Tao
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