Dynamics in One-Dimensional Spin Systems - Density-Matrix Renormalization Group Study

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dc.creatorNishimoto, S.
dc.creatorArikawa, M.
dc.date2007-10-18
dc.date.accessioned2026-07-07T08:37:04Z
dc.date.available2026-07-07T08:37:04Z
dc.descriptionWe study the one-dimensional $S=1/2$ Heisenberg model with a uniform and a staggered magnetic fields, using the dynamical density-matrix renormalization group (DDMRG) technique. The DDMRG enables us to investigate the dynamical properties of chain with lengths up to a few hundreds, and the results are numerically exact in the same sense as 'exact diagonalization' results are. Thus, we can analyze the low-energy spectrum almost in the thermodynamic limit. In this work, we calculate the dynamical spin structure factor and demonstrate the performance of the DDMRG method applying the open-end boundary condition as well as the periodic boundary condition.
dc.description11 pages, 6 figures
dc.identifierhttps://arxiv.org/abs/0710.3506
dc.identifierhttp://arxiv.org/abs/0710.3506
dc.identifierInternational Journal of Modern Physics B, Volume 21, Issue 13-14, pp. 2262-2272 (2007)
dc.identifierdoi:10.1142/S0217979207043646
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/140276
dc.subjectStrongly Correlated Electrons
dc.titleDynamics in One-Dimensional Spin Systems - Density-Matrix Renormalization Group Study
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