TCB Publications - Abstract

Paul Tavan and Klaus Schulten. Quasiparticle excitations in polyenes and polyacetylene. In A. J. Heeger, J. Orenstein, and D. Ulrich, editors, Nonlinear Optical Properties of Polymers, volume 109 of Symposium Proceedings, pp. 163-170. Materials Research Society, Pittsburgh, 1988.

TAVA88 We apply the Pariser-Parr-Pople Hamiltonian to study many-electron excitations in polyenes and polyacetylene. The excited singlet states of polyenes, calculated by a multi-reference double excitation expansion, are classified as quasi-particle excitations, namely as triplet-triplet magnons and particle-hole excitons. From finite polyene spectra we derive approximate dispersion relations for these quasi-particles in the infinite polyene, i.e. polyacetylene.

Download Full Text

The manuscripts available on our site are provided for your personal use only and may not be retransmitted or redistributed without written permissions from the paper's publisher and author. You may not upload any of this site's material to any public server, on-line service, network, or bulletin board without prior written permission from the publisher and author. You may not make copies for any commercial purpose. Reproduction or storage of materials retrieved from this web site is subject to the U.S. Copyright Act of 1976, Title 17 U.S.C.

Download full text: PDF (344.0KB)