Theory of optical absorption intrans-polyacetylene containing solitons

Abstract
We present a theoretical study of the effects of M widely separated solitons on the optical-absorption spectra of trans-polyacetylene (CH)x. We show that the interband optical absorption is the same as with no solitons present minus a small correction proportional to the soliton density. We also consider the resonant Raman scattering in the presence of solitons.