title: Multidimensional attosecond resonant X-ray spectroscopy of molecules: lessons from the optical regime.
abstract: New free-electron laser and high-harmonic generation X-ray light sources are capable of supplying pulses short and intense enough to perform resonant nonlinear time-resolved experiments in molecules. Valence-electron motions can be triggered impulsively by core excitations and monitored with high temporal and spatial resolution. We discuss possible experiments that employ attosecond X-ray pulses to probe the quantum coherence and correlations of valence electrons and holes, rather than the charge density alone, building on the analogy with existing studies of vibrational motions using femtosecond techniques in the visible regime.
authors.affiliation: Department of Chemistry, University of California, Irvine, California 92697, USA. smukamel@uci.edu
authors.forename: Shaul
authors.initials: S
authors.lastname: Mukamel
authors.forename: Daniel
authors.initials: D
authors.lastname: Healion
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhang
authors.forename: Jason D
authors.initials: JD
authors.lastname: Biggs
mesh_terms: D000465:Algorithms; D013052:Spectrometry, X-Ray Emission / Q000379:methods; D013057:Spectrum Analysis / Q000379:methods*; D013059:Spectrum Analysis, Raman / Q000379:methods; D014965:X-Rays