论文标题

Yang-Mills理论中一阶相变的状态方法的密度

The density of state method for first-order phase transitions in Yang-Mills theories

论文作者

Mason, David, Lucini, Biagio, Piai, Maurizio, Rinaldi, Enrico, Vadacchino, Davide

论文摘要

晶格场理论可用于研究新的,强耦合的现象学兴趣理论的有限温度一阶相变。使用标准方法分析时,相位过渡近端产生的亚稳态动力学会导致大型,不受控制的数值误差。在这项贡献中,我们讨论了一种原型晶格计算,其中使用一种新型晶格方法(对数线性弛豫算法)分析了标准模型的强阳米尔斯扇区中的一阶解限转换。该方法提供了具有指数误差的系统状态密度的确定。

Lattice Field Theory can be used to study finite temperature first-order phase transitions in new, strongly-coupled gauge theories of phenomenological interest. Metastable dynamics arising in proximity of the phase transition can lead to large, uncontrolled numerical errors when analysed with standard methods. In this contribution, we discuss a prototype lattice calculation in which the first-order deconfinement transition in the strong Yang-Mills sector of the standard model is analysed using a novel lattice method, the logarithmic linear relaxation algorithm. This method provides a determination of the density of states of the system with exponential error suppression.

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