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Nonlinear Electronic Density Response in Warm Dense Matter
Warm dense matter (WDM)—an extreme state with high temperatures and densities that occurse.g. in astrophysical objects—constitutes one of the most active fields in plasma physics and materials science. These conditions can be realized in the lab by shock compression or laser excitation, and the most accurate experimental diagnostics is achieved with lasers and free electron lasers which is theoretically modeled using linear response theory. Here, we present first ab initio path integral Monte Carlo results for the nonlinear density response of correlated electrons in WDM and show that for many situations of experimental relevance nonlinear effects cannot be neglected.
Keywords: Warm dense matter; Nonlinear effects; path integral Monte Carlo
- PIMC data for the nonlinear electronic density response in … (Id 31390) HZDR-primary research data are used by this (Id 31377) publication
Physical Review Letters 125(2020)8, 085001
- Original PDF 450 kB Secondary publication