标题： 新的$N_f=2$伪费米子作用量用于带有域墙费米子的格点场论蒙特卡罗模拟 显示英文标题

标题： New $N_f=2$ Pseudofermion Action for Monte-Carlo Simulation of Lattice Field Theory with Domain-Wall Fermions

摘要： 我们构建了一个新颖的$ N_f = 2 $伪费米子作用量，用于具有域墙费米子（DWF）的格点规范理论的蒙特卡洛模拟，其中有效四维格点狄拉克算符等于重叠-狄拉克算符，其符号函数的参数为$ H = c \gamma_5 D_w (1 + d D_w)^{-1} $，其中$ c $和$ d $是参数，且$D_w$是标准威尔逊-狄拉克算符加上一个负参数$-m_0 \; (0 < m_0 < 2)$。 这种新的作用量在具有大$N_f = 2n $DWF 的格点规范理论的挑战性模拟中特别有用，在大格点上以及在强耦合区域中。 显示英文摘要

摘要： We construct a novel $ N_f = 2 $ pseudofermion action for Monte-Carlo simulation of lattice gauge theory with domain-wall fermions (DWF), of which the effective four-dimensional lattice Dirac operator is equal to the overlap-Dirac operator with the argument of the sign function equal to $ H = c \gamma_5 D_w (1 + d D_w)^{-1} $, where $ c $ and $ d $ are parameters, and $D_w$ is the standard Wilson-Dirac operator plus a negative parameter $-m_0 \; (0 < m_0 < 2)$. This new action is particularly useful for the challenging simulations of lattice gauge theories with large $N_f = 2n $ DWF, on the large lattices, and in the strong-coupling regime.