Similarity renormalization group for nuclear forces

Matthias Heinz

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arXiv · 2603.04311

Similarity renormalization group for nuclear forces

Matthias Heinz

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Abstract

Renormalization group methods generate low-resolution Hamiltonians that are more diagonal, with reduced coupling between low- and high-energy states, and thus easier to solve. This chapter reviews the similarity renormalization group for nuclear Hamiltonians, which is a popular method for generating low-resolution nuclear forces. It presents the similarity renormalization group flow equations, analyzes how the similarity renormalization group drives the Hamiltonian towards the diagonal, and studies the effect of induced many-body interactions. It concludes by highlighting the progress in first-principles calculations of nuclei driven by low-resolution nuclear Hamiltonians.

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Matthias Heinz. 2026-03-04. Similarity renormalization group for nuclear forces. https://arxiv.org/abs/2603.04311

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