谐振子基底下红外外推的性质
核理论
2016-04-28 v2
摘要
我们继续研究无核壳模型计算中的红外(ir)和紫外(uv)截断 regulator。我们将结果扩展至:当 uv 截断高于相互作用的固有 uv 标度时,在 ir 截断上的外推不仅对哈密顿量的本征态非常成功,对所考虑的长程算符的期望值也同样成功。后者的结果是通过对由相似性重整化群(SRG)演化变换后的哈密顿量获得的。另一方面,当 ir 截断低于固有 ir 标度时,所提出的在 uv 截断上的外推既不具备鲁棒性也不可靠。
引用
@article{arxiv.1408.0738,
title = {Properties of infrared extrapolations in a harmonic oscillator basis},
author = {Sidney A. Coon and Michael K. G. Kruse},
journal= {arXiv preprint arXiv:1408.0738},
year = {2016}
}
备注
replaced with the version published in a special issue on "Effective Field theories for Nuclear Physics" of International Journal of Modern Physics E, includes further discussion of the running of the radius with the ir regulator, conclusions unchanged