Worldline Monte Carlo for fermion models at large N f
Worldline Monte Carlo for fermion models at large N f
复制标题
Worldline Monte Carlo 适用于大 N f 的费米子模型
DOI:
10.1088/1126-6708/2009/08/010
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发表时间:
2009
影响因子:
5.4
通讯作者:
Dunne G
中科院分区:
文献类型:
--
作者:
Dunne G
Strongly-coupled fermionic systems can support a variety of low-energy phenomena, giving rise to collective condensation, symmetry breaking and a rich phase structure. We explore the potential of worldline Monte Carlo methods for analyzing the effective action of fermionic systems at large flavor number N f, using the Gross-Neveu model as an example. Since the worldline Monte Carlo approach does not require a discretized spacetime, fermion doubling problems are absent, and chiral symmetry can manifestly be maintained. As a particular advantage, fluctuations in general inhomogeneous condensates can conveniently be dealt with analytically or numerically, while the renormalization can always be uniquely performed analytically. We also critically examine the limitations of a straightforward implementation of the algorithms, identifying potential convergence problems in the presence of fermionic zero modes as well as in the high-density region.
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DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
M. G. Schmidt;I. Stamatescu
通讯作者:
I. Stamatescu
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
G. Basar;G. Dunne;M. Thies
通讯作者:
M. Thies
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
J. Barbieri;G. Chapline;D. Santiago
通讯作者:
D. Santiago
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
S. Ejiri;C. Allton;Simon Hands;O. Kaczmarek;F. Karsch;E. Laermann;C. Schmidt
通讯作者:
C. Schmidt
DOI:
--
发表时间:
1974
期刊:
影响因子:
--
作者:
A. P. Shostak
通讯作者:
A. P. Shostak