论文标题
彩色噪声的晶格上的低能量有效理论
Low energy effective theories on the lattice with coloured noise
论文作者
论文摘要
低能量有效理论可以访问QCD相图的范围，迄今为止，很难用晶格QCD或功能方法直接模拟。对于晶格QCD，这包括较小的温度和/或较大的密度状态。在这两种制度中，低能效率理论中的较低的紫外线临界值可能会软化计算问题。此外，低能能源理论的晶格结果是这些有效理论的功能方法的基准结果。在这里，我们提供标量O（$ 4 $）和夸克 - 梅森型号的格子结果。我们通过随机定量模拟理论，并报告采用有色噪声的效果，该方法允许控制模拟的动量尺度。
Low energy effective theories give access to regimes of the QCD phase diagram that to date are hard to simulate directly with lattice QCD or with functional approaches. For lattice QCD this includes the small temperature and/or large density regime. In both regimes the lower UV cutoff in low energy effective theories may soften computational problems. Moreover, lattice results for low energy effective theories serve as benchmark results for functional approaches for these effective theories. Here we present lattice results for the scalar O($4$) and quark-meson models. We simulate the theory via Stochastic Quantisation and report on the effects of employing coloured noise, a method that allows control over the momentum scale of the simulation.
