title: Excitons in Time-Dependent Density-Functional Theory.
abstract: This chapter gives an overview of the description of the optical and dielectric properties of bulk insulators and semiconductors in time-dependent density-functional theory (TDDFT), with an emphasis on excitons. We review the linear-response formalism for periodic solids, discuss excitonic exchange-correlation kernels, calculate exciton binding energies for various materials, and compare the treatment of excitons with TDDFT and with the Bethe-Salpeter equation.
authors: Department of Physics and Astronomy, University of Missouri, Columbia, MO, 65211, USA, ullrichc@missouri.edu.
authors: Carsten A
authors: CA
authors: Ullrich
authors: Zeng-hui
authors: ZH
authors: Yang