title: Holography and string dynamics in time-dependent backgrounds.
abstract: We study the dynamics of D-branes in a smooth time-dependent background. The theory on the branes is a time-dependent noncommutative field theory. We find the metric and fluxes that determine the dual holographic closed string theory. This provides a concrete example of holography in a cosmological setting.
authors.affiliation: School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540, USA.
authors.forename: Akikazu
authors.initials: A
authors.lastname: Hashimoto
authors.forename: Savdeep
authors.initials: S
authors.lastname: Sethi