Imaginary chemical potential approach for the pseudocritical line in the QCD phase diagram with clover-improved Wilson fermions
この文献の参照には次のURLをご利用ください : https://ir.lib.hiroshima-u.ac.jp/00031875
ID | 31875 |
本文ファイル | |
著者 |
Nagata, Keitaro
|
NDC |
物理学
|
抄録(英) | The QCD phase diagram is studied in the lattice QCD simulation with the imaginary chemical potential approach. We employ a clover-improved Wilson fermion action of two flavors and a renormalization-group improved gauge action and perform the simulation at an intermediate quark mass on a 8^3×4 lattice. The QCD phase diagram in the imaginary chemical potential μ_I region is investigated by performing the simulation for more than 150 points on the (β,μ_I) plane. We find that the Roberge-Weiss phase transition at μ_I/T=π/3 is first order and its endpoint is second order, which are identified by the phase of the Polyakov loop. We determine the pseudocritical line from the susceptibility of the Polyakov loop modulus. We find a clear deviation from a linear dependence of the pseudocritical line on μ^2_1.
|
掲載誌名 |
Physical Review D
|
巻 | 83巻
|
開始ページ | 114507-1
|
終了ページ | 114507-9
|
出版年月日 | 2011-06-13
|
出版者 | American Physical Society
|
ISSN | 1550-7998
|
NCID | |
出版者DOI | |
言語 |
英語
|
NII資源タイプ |
学術雑誌論文
|
広大資料タイプ |
学術雑誌論文
|
DCMIタイプ | text
|
フォーマット | application/pdf
|
著者版フラグ | publisher
|
権利情報 | Copyright (c) 2011 The American Physical Society
|
関連情報URL | |
部局名 |
情報メディア教育研究センター
|