title: Density matrix analysis and simulation of electronic excitations in conjugated and aggregated molecules.
authors.affiliation: Department of Chemistry, University of Rochester, New York 14627-0216, USA. serg@lanl.gov
authors.forename: Sergei
authors.initials: S
authors.lastname: Tretiak
authors.forename: Shaul
authors.initials: S
authors.lastname: Mukamel