Time evolution with the density-matrix renormalization-group algorithm: A generic implementation for strongly correlated electronic systems
Gonzalo Álvarez, Luis G. G. V. Dias da Silva, E. Ponce +1 more
A detailed description of the time-step-targeting time evolution method within the density-matrix renormalization-group algorithm is presented. The focus of this publication is on the implementation of the algorithm and its generic application. The case of one-site excitations within a Hubbard model is analyzed as a test for the algorithm, using open chains and two-leg ladder geometries. The accuracy of the procedure in the case of the recently discussed holon-doublon photo excitations of Mott insulators is also analyzed. Performance and parallelization issues are discussed. In addition, the full open-source code is provided as supplementary material.
arXiv:1103.5391•Physical Review E•Nov 21, 2011•20 citations