Direct sampling of the self-energy with Connected Determinant Monte Carlo.
In this note, we present an efficient algorithm to sample directly the self-energy in the framework of the Connected Determinant technique. The introduction of the formalism of many-variable formal power series is essential to the proof, and more generally it is a natural mathematical tool for diagrammatic expansions.
Publisher URL: http://arxiv.org/abs/1802.04743
DOI: arXiv:1802.04743v1
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