title: Spectra of conjugated polymer aggregates: Symmetry of the interchain dressed states.
abstract: Here we consider an interchain interaction model to understand the spectral properties of aggregate of a class of conjugated polymers. The dressed eigenstates are calculated for the equivalent and inequivalent chain dimers and are symmetry classified. We have provided the Wigner function matrix to describe the quantum interference due to nonadiabaticity in the excitonic states, the energy distribution between the chains as well as the phase relation between the vibrational modes. The various disorder-induced effects on the spectra can be explained by the dimeric chains that are generally inequivalent.
authors.affiliation: S.N. Bose National Centre for Basic Sciences, Block-JD, Sector-III, Salt Lake, Kolkata 700098, India.
authors.forename: Kinshuk
authors.initials: K
authors.lastname: Banerjee
authors.forename: Gautam
authors.initials: G
authors.lastname: Gangopadhyay