Abstract
The S=2 antiferromagnetic Heisenberg open chain is analyzed with the real-space numerical renormalization-group method improved by White. The low-lying spectrum and the one-point function are evaluated to show the degeneracy and the boundary effect on the ground state. Generalized string correlation functions were calculated for θ=π and θ=π/2. The θ=π/2 string correlation is found to indicate the long-range hidden order of the ground state. These results are quite consistent with the S=2 vbs argument.
| Original language | English |
|---|---|
| Pages (from-to) | 414-422 |
| Number of pages | 9 |
| Journal | journal of the physical society of japan |
| Volume | 64 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Feb 1995 |
| Externally published | Yes |
Keywords
- Haldane conjecture
- S=2 system
- antiferromagnetic Heisenberg chain
- density-matrix renormalization method
- quantum spin systems
- valence-bond solid
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Nishiyama, Y., Totsuka, K., Hatano, N., & Suzuki, M. (1995). Real-Space Renormalization-Group Analysis of the S=2 Antiferromagnetic Heisenberg Chain. journal of the physical society of japan, 64(2), 414-422. https://doi.org/10.1143/JPSJ.64.414