A simple way to avoid metastable configurations in the density-matrix renormalization-group algorithms
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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Sociedade Brasileira de Física
2009
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| _version_ | 1876486675850330112 |
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| author | J. C. Xavier |
| author_facet | J. C. Xavier |
| contents | A simple way to avoid metastable configurations in the density-matrix renormalization-group algorithms J. C. Xavier Física, Astronomía y Matemáticas DMRG spin Spin model We use the spin-1 Heisenberg chain with periodic boundary conditions to ilustrate that the systems get stuck in metastable configurations only when the density-matrix renormalization-group algorithm start with small number of states m. We also show that the convergence of the energies have a huge improvement if we start the algorithm with a large number of states m. 2009 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413562016 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3 Vol.39 |
| format | Artículo científico |
| id | redalyc_46413562016 |
| institution | Redalyc |
| language | en |
| publishDate | 2009 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | A simple way to avoid metastable configurations in the density-matrix renormalization-group algorithms J. C. Xavier Física, Astronomía y Matemáticas DMRG spin Spin model A simple way to avoid metastable configurations in the density-matrix renormalization-group algorithms J. C. Xavier Física, Astronomía y Matemáticas DMRG spin Spin model We use the spin-1 Heisenberg chain with periodic boundary conditions to ilustrate that the systems get stuck in metastable configurations only when the density-matrix renormalization-group algorithm start with small number of states m. We also show that the convergence of the energies have a huge improvement if we start the algorithm with a large number of states m. 2009 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46413562016 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3 Vol.39 |
| title | A simple way to avoid metastable configurations in the density-matrix renormalization-group algorithms |
| topic | Física, Astronomía y Matemáticas DMRG spin Spin model |
| url | https://www.redalyc.org/articulo.oa?id=46413562016 |