Variational Calculations using Low-Momentum Potentials with Smooth Cutoffs
核理论
2009-11-11 v1 其他凝聚态物理
高能物理 - 唯象学
摘要
Recent variational calculations of the deuteron and the triton illustrate that simple wave function ansatze become more effective after evolving the nucleon-nucleon potential to lower momentum (``V_lowk''). However, wave function artifacts from the use of sharp cutoffs in relative momentum decrease effectiveness for small cutoffs (< 2 fm^-1) and slow down convergence in harmonic oscillator bases. These sharp cutoff artifacts are eliminated when V_lowk is generated using a sufficiently smooth cutoff regulator.
引用
@article{arxiv.nucl-th/0602017,
title = {Variational Calculations using Low-Momentum Potentials with Smooth Cutoffs},
author = {S. K. Bogner and R. J. Furnstahl},
journal= {arXiv preprint arXiv:nucl-th/0602017},
year = {2009}
}
备注
11 pages, 4 figures