Finite-density Monte Carlo calculations on sign-optimized manifolds
Finite-density Monte Carlo calculations on sign-optimized manifolds
复制标题
符号优化流形上的有限密度蒙特卡罗计算
DOI:
10.1103/physrevd.97.094510
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发表时间:
2018
影响因子:
5
通讯作者:
S. Lawrence
中科院分区:
文献类型:
--
作者:
A. Alexandru;P. Bedaque;Henry Lamm;S. Lawrence
We present a general technique for addressing sign problems that arise in Monte Carlo simulations of field theories. This method deforms the domain of the path integral to a manifold in complex field space that maximizes the average sign (therefore reducing the sign problem) within a parameterized family of manifolds. We presents results for the $1+1$ dimensional Thirring model with Wilson fermions on lattice sizes up to $40\times 10$. This method reaches higher $\mu$ then previous techniques while substantially decreasing the computational time required.