Exploratory investigation of nucleon-nucleon interactions using Euclidean Monte Carlo simulations
Exploratory investigation of nucleon-nucleon interactions using Euclidean Monte Carlo simulations
复制标题
使用欧几里得蒙特卡罗模拟对核子-核子相互作用的探索性研究
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
C. Urbach
中科院分区：
文献类型：
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作者：
I. Montvay;C. Urbach
本文采用格点量子色动力学（QCD）的方法，对原子核手征有效理论进行了探索性研究。我们证明了用欧氏路径积分方法进行模拟是可行的，并且我们可以确定双核子态的能量。这开辟了可能性，以确定在未来的模拟核子相移，通过改变参数和模拟量。该理论的物理截止是通过格点场的阻塞来实现的。通过保持块大小在物理单位中固定，可以自由地改变晶格截止（即晶格间距）。这为控制点阵伪影提供了一种有效的方法。
We present an exploratory study of chiral effective theories of nuclei with methods adopted from lattice quantum chromodynamics (QCD). We show that the simulations in the Euclidean path integral approach are feasible and that we can determine the energy of the two-nucleon state. This opens up the possibility to determine in future simulations nucleon phase shifts by varying the parameters and the simulated volumes. The physical cut-off of the theory is realised by blocking of the lattice fields. By keeping the block size fixed in physical units the lattice cut-off (i.e. the lattice spacing) can be freely changed. This offers an effective way for controlling lattice artefacts.