Indirect evidence for elemental hydrogen in laser-compressed hydrocarbons
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70 PLASMA PHYSICS AND FUSION TECHNOLOGY↗
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Response Functions of Correlated Systems within Green's Function Theory
Why use Green's functions as the fundamental variable? Wave-function (Psi) methods are king for high-fidelity and Density-functional (Rho) methods are very efficient (Kohn-Sham). Goldilocks principle: Green's function (G) methods straddle the Rho and Psi methods, intermediate in both accuracy and efficiency. Also, when interest lies in excitations & 2-particle properties: G-methods are natural - intrinsic to the theory.
DMFT↗