title: Yoctosecond photon pulses from quark-gluon plasmas.
abstract: Present ultrafast laser optics is at the frontier between atto- and zeptosecond photon pulses, giving rise to unprecedented applications. We show that high-energetic photon pulses down to the yoctosecond time scale can be produced in heavy-ion collisions. We focus on photons produced during the initial phase of the expanding quark-gluon plasma. We study how the time evolution and properties of the plasma may influence the duration and shape of the photon pulse. Prospects for achieving double-peak structures suitable for pump-probe experiments at the yoctosecond time scale are discussed.
authors.affiliation: Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, D-69117 Heidelberg, Germany. andreas.ipp@mpi-hd.mpg.de
authors.forename: Andreas
authors.initials: A
authors.lastname: Ipp
authors.forename: Christoph H
authors.initials: CH
authors.lastname: Keitel
authors.forename: Jörg
authors.initials: J
authors.lastname: Evers