Overcoming the sign problem in one-dimensional QCD by new integration rules with polynomial exactness
Overcoming the sign problem in one-dimensional QCD by new integration rules with polynomial exactness
复制标题
通过具有多项式精确度的新积分规则克服一维 QCD 中的符号问题
DOI:
10.1103/physrevd.94.114508
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发表时间:
2016
影响因子:
5
通讯作者:
J. Volmer
中科院分区:
文献类型:
--
作者:
A. Ammon;T. Hartung;K. Jansen;H. Leövey;J. Volmer
In this paper we describe a new integration method for the groupsand, for which we verified numerically that it is polynomially exact for. The method is applied to the example of one-dimensional QCD with a chemical potential. We explore, in particular, regions of the parameter space in which the sign problem appears due the presence of the chemical potential. While Markov chain Monte Carlo fails in this region, our new integration method still provides results for the chiral condensate on arbitrary precision, demonstrating clearly that it overcomes the sign problem. Furthermore, we demonstrate that also in other regions of parameter space our new method leads to errors which are reduced by orders of magnitude.
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DOI:
10.22323/1.214.0016
发表时间:
2014
期刊:
arXiv: High Energy Physics - Lattice
影响因子:
--
作者:
D. Sexty
通讯作者:
D. Sexty
影响因子:
5
作者:
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通讯作者:
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DOI:
10.1016/j.cpc.2015.09.004
发表时间:
2016
期刊:
Comput. Phys. Commun.
影响因子:
--
作者:
A. Ammon;A. Genz;T. Hartung;K. Jansen;H. Leövey;J. Volmer
通讯作者:
J. Volmer
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
E. Ilgenfritz;J. Kripfganz
通讯作者:
J. Kripfganz
DOI:
10.1016/j.cpc.2013.10.011
发表时间:
2014
期刊:
Comput. Phys. Commun.
影响因子:
--
作者:
K. Jansen;H. Leövey;A. Ammon;A. Griewank;M. Müller-Preussker
通讯作者:
M. Müller-Preussker