English

Short-range interaction in three-dimensional quantum mechanics

Quantum Physics 2011-11-10 v1 Mathematical Physics math.MP Nuclear Theory

Abstract

We show that it is possible to define shape-independent three-dimensional short-range quantum interactions in two parameter form for non-spherical angular momentum channels through double rescaling of potential strength. Unlike the special case of l=0l=0, where the zero range limit of the system is renormalizable, the effective ranges diverge for l/ne0l /ne 0 channels, and the system becomes trivial at zero-size limit. It is also shown that the two-parameter representation with finite interaction range is useful in analyzing phase shifts with accuracy and describing resonances in non-spherical scatterings.

Keywords

Cite

@article{arxiv.1008.5002,
  title  = {Short-range interaction in three-dimensional quantum mechanics},
  author = {Taksu Cheon},
  journal= {arXiv preprint arXiv:1008.5002},
  year   = {2011}
}

Comments

LaTeX 7 pages, 3 figures, Elsevier format

R2 v1 2026-06-21T16:06:40.013Z