2014/11/22 by Lang Liu · 2 citations
Chemistry · Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Chemistry #High-pressure geophysics and materials #Mathematics #Monte Carlo method #Nuclear physics research studies #Operator (biology) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Spurious relationship #Statistical physics #Statistics #nucl-th
paper · pdf · doi:10.1088/1674-1137/39/5/054103
published in Chinese Physics C 39(5), 054103 (IOP Publishing) · 10 pages, 4 figures. arXiv admin note: text overlap with arXiv:0802.4239 by other authors
arxiv created 2014/11/22 · openalex publication_date 2015/05/01 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The unitary correlation operator method (UCOM) and the similarity renormalization group theory (SRG) are compared and discussed in the framework of the no-core Monte Carlo shell model (MCSM) calculations for 3 H and 4 He. The treatment of spurious center-of-mass motion by Lawson's prescription is performed in the MCSM calculations. These results with both transformed interactions show good suppression of spurious center-of-mass motion with proper Lawson's prescription parameter β c.m. values. The UCOM potentials obtain faster convergence of total energy for the ground state than that of SRG potentials in the MCSM calculations, which differs from the cases in the no-core shell model calculations (NCSM). These differences are discussed and analyzed in terms of the truncation scheme in the MCSM and NCSM, as well as the properties of the potentials of SRG and UCOM.