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arXiv · 1901.11255

Theory for Time-Resolved Resonant Inelastic X-ray Scattering

Yuan Chen·Yao Wang·Chunjing Jia·Brian Moritz·Andrij M. Shvaika·James K. Freericks·Thomas P. Devereaux
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Abstract

Time-resolved measurements of materials provide a wealth of information on quasiparticle dynamics, and have been the focus of optical studies for decades. In this paper, we develop a theory for explicitly evaluating time-resolved resonant inelastic X-ray scattering (tr-RIXS). We apply the theory to a non-interacting electronic system and reveal the particle-hole spectrum and its evolution during the pump pulse. With a high-frequency pump, the frequency and amplitude dependence analysis of the spectra agrees well with the steady-state assumptions and Floquet excitations. When the pump frequency is low, the spectrum extracts real-time dynamics of the particle-hole continuum in momentum space. These results verify the correctness of our theory and demonstrate the breadth of physical problems that tr-RIXS could shed light on.

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Yuan Chen, Yao Wang, Chunjing Jia, Brian Moritz, Andrij M. Shvaika, James K. Freericks, Thomas P. Devereaux. 2019-03-15. Theory for Time-Resolved Resonant Inelastic X-ray Scattering. https://doi.org/10.1103/physrevb.99.104306

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