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Updated: May 15, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
Published on: June 28, 2016
Multidimensional attosecond resonant X-ray spectroscopy of molecules: lessons from the optical regime
Shaul Mukamel1, Daniel Healion, Yu Zhang
1Department of Chemistry, University of California, Irvine, California 92697, USA. smukamel@uci.edu
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.
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