The Similarity Renormalization Group for Three-Body Interactions in One Dimension
arXiv:1107.3064 · doi:10.1140/epja/i2011-11122-4
Abstract
We report on recent progress of the implementation of the similarity renormalization group (SRG) for three-body interactions in a one-dimensional, bosonic model system using the plane wave basis. We discuss our implementation of the flow equations and show results that confirm that results in the three-body sector remain unchanged by the transformation of the Hamiltonian. We also show how the SRG transformation decouples low- from high-momentum nodes in the three-body sector and therefore simplifies the numerical calculation of observables.
7 pages, 5 figures, svjour style