Renormalization group flow of SU(3) lattice gauge theory : Numerical studies in a two coupling space
Renormalization group flow of SU(3) lattice gauge theory : Numerical studies in a two coupling space
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SU(3) 晶格规范理论的重正化群流:二元耦合空间中的数值研究
DOI:
10.1016/s0550-3213(00)00145-0
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发表时间:
1999
期刊:
影响因子:
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通讯作者:
T. Umeda
中科院分区:
文献类型:
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作者:
P. Forcrand;M. G. Pérez;T. Hashimoto;S. Hioki;H. Matsufuru;O. Miyamura;A. Nakamura;I. Stamatescu;I. Stamatescu;T. Takaishi;T. Umeda
We investigate the renormalization group (RG) flow of SU(3) lattice gauge theory in a two coupling space with couplings β11and β12corresponding to 1×1 and 1×2 loops, respectively. Extensive numerical calculations of the RG flow are made in the fourth quadrant of this coupling space, i.e., β11>0 and β12<0 . Swendsen's factor two blocking and the Schwinger–Dyson method are used to find an effective action for the blocked gauge field. The resulting renormalization group flow runs quickly towards an attractive stream which has an approximate line shape. This is a numerical evidence of a renormalized trajectory which locates close to the two coupling space. A model flow equation which incorporates a marginal coupling (asymptotic scaling term), an irrelevant coupling and a non-perturbative attraction towards the strong coupling limit reproduces qualitatively the observed features. We further examine the scaling properties of an action which is closer to the attractive stream than the currently used improved actions. It is found that this action shows excellent restoration of rotational symmetry even for coarse lattices with a∼0.3 fm.
DOI:
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发表时间:
1997
期刊:
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影响因子:
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作者:
S. Aoki;G. Boyd;R. Burkhalter;S. Hashimoto;N. Ishizuka;Y. Iwasaki;K. Kanaya;T. Kaneko;Y. Kuramashi;M. Okawa;A. Ukawa
通讯作者:
S. Aoki;G. Boyd;R. Burkhalter;S. Hashimoto;N. Ishizuka;Y. Iwasaki;K. Kanaya;T. Kaneko;Y. Kuramashi;M. Okawa;A. Ukawa
影响因子:
5
作者:
M. Okamoto;A. Khan;S. Aoki;R. Burkhalter;S. Ejiri;M. Fukugita;S. Hashimoto;N. Ishizuka;Y. Iwasaki;K. Kanaya;Tsuyoshi Kaneko;Y. Kuramashi;T. Manke;K. Nagai;M. Okawa;A. Ukawa;T. Yoshie
通讯作者:
M. Okamoto;A. Khan;S. Aoki;R. Burkhalter;S. Ejiri;M. Fukugita;S. Hashimoto;N. Ishizuka;Y. Iwasaki;K. Kanaya;Tsuyoshi Kaneko;Y. Kuramashi;T. Manke;K. Nagai;M. Okawa;A. Ukawa;T. Yoshie
DOI:
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发表时间:
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期刊:
影响因子:
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通讯作者:
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