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--- documentation:language_reference:objects:responsefunction:functions:downfold [2026/11/12 18:18] – created Maurits W. Haverkort
+++ documentation:language_reference:objects:responsefunction:functions:downfold [2026/11/12 18:23] (current) – Maurits W. Haverkort
@@ Line 13: / Line 13: @@
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-This is the symmetric improved estimator of the self-energy, evaluated on a discrete spectral representation. Let $H = H_0 + H_1$ with $H_0$ the one-particle part and $H_1$ the interaction, and let $a_{\mathfrak{m}}$ annihilate one of the $N$ orbitals the self-energy is wanted on. Alongside them define
+This is the symmetric improved estimator of the self-energy as published in [[https://doi.org/10.1103/hlx7-94t4|Phys. Rev. B 114, 285111 (2026)]] , evaluated on a discrete spectral representation. Let $H = H_0 + H_1$ with $H_0$ the one-particle part and $H_1$ the interaction, and let $a_{\mathfrak{m}}$ annihilate one of the $N$ orbitals the self-energy is wanted on. Alongside them define
 \begin{equation}
 q_{\mathfrak{m}} = \left[ a_{\mathfrak{m}} , H_1 \right] ,