Numerical study of QCD phase diagram at high temperature and density by a histogram method

被引：9

作者：

Ejiri, Shinji ^{[1
]}

Aoki, Sinya ^{[2
,3
]}

Hatsuda, Tetsuo ^{[4
,5
,6
]}

Kanaya, Kazuyuki ^{[2
]}

Nakagawa, Yoshiyuki ^{[1
]}

Ohno, Hiroshi ^{[2
]}

Saito, Hana ^{[2
]}

Umeda, Takashi ^{[7
]}

机构：

[1] Niigata Univ, Grad Sch Sci & Technol, Niigata 9502181, Japan

[2] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan

[3] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan

[4] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan

[5] Univ Tokyo, IPMU, Kashiwa, Chiba 2778583, Japan

[6] RIKEN, Nishina Ctr, Theoret Res Div, Wako, Saitama 3510198, Japan

[7] Hiroshima Univ, Grad Sch Educ, Hiroshima 7398524, Japan

来源：

CENTRAL EUROPEAN JOURNAL OF PHYSICS | 2012年 / 10卷 / 06期

关键词：

CPOD; 2011;

D O I：

10.2478/s11534-012-0054-7

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the QCD phase structure at high temperature and density adopting a histogram method. Because the quark determinant is complex at finite density, the Monte-Carlo method cannot be applied directly. We use a reweighting method and try to solve the problems which arise in the reweighting method, i.e. the sign problem and the overlap problem. We discuss the chemical potential dependence of the probability distribution function in the heavy quark mass region and examine the applicability of the approach in the light quark region.

引用

页码：1322 / 1325

页数：4

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