# In-Medium Similarity Renormalization Group for Open-Shell Nuclei

Source: [In-Medium Similarity Renormalization Group for Open-Shell Nuclei](<https://www.sota2.com/research/paper/68fa2b601e209131ce845f69>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T14:08:34.664Z

Authors: K. Tsukiyama, S. K. Bogner, A. Schwenk

Published: 2012-03-12T15:21:00.000Z

## Abstract

We present a nonperturbative derivation of effective valence-shell Hamiltonians in the framework of the recently developed in-medium similarity renormalization group (IM-SRG). As a first application, we calculate the spectra of $p$- and $sd$-shell nuclei, $^6$Li and $^{18}$O, based on evolved chiral nucleon-nucleon interactions. For $^6$Li, the spectrum is in very good agreement with ab-initio results. For $^{18}$O, the IM-SRG provides a new method for the shell model to systematically go beyond effective interaction techniques based on diagrammatic expansions.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1203.2515>)

[PDF](<https://arxiv.org/pdf/1203.2515.pdf>)