Low-Lying Electronic Excitations and Nonlinear Optic Properties of Polymers via Symmetrized Density Matrix Renormalization Group Method
Condensed Matter
2007-05-23 v1
Abstract
A symmetrized Density Matrix Renormalization Group procedure together with the correction vector approach is shown to be highly accurate for obtaining dynamic linear and third order polarizabilities of one-dimensional Hubbard and models. The model is seen to show characteristically different third harmonic generation response in the CDW and SDW phases. This can be rationalized from the excitation spectrum of the systems.
Keywords
Cite
@article{arxiv.cond-mat/9609164,
title = {Low-Lying Electronic Excitations and Nonlinear Optic Properties of Polymers via Symmetrized Density Matrix Renormalization Group Method},
author = {S. Ramasesha and Swapan K. Pati and H. R. Krishnamurthy and Z. Shuai and J. L. Bredas},
journal= {arXiv preprint arXiv:cond-mat/9609164},
year = {2007}
}
Comments
4 pages Latex; 3 eps figures available upon request; Proceedings of ICSM '96, to appear in Synth. Metals, 1996