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 U - V models. The U - V 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.
Original language | English (US) |
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Pages (from-to) | 1019-1022 |
Number of pages | 4 |
Journal | Synthetic Metals |
Volume | 85 |
Issue number | 1-3 |
DOIs | |
State | Published - Mar 15 1997 |
Externally published | Yes |
Keywords
- Excitation spectra calculations
- Many-body and quasiparticle theories
- Models of non-linear phenomena
- Non-linear optical method
- Semiempirical models and model calculations
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry