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Open Physics

formerly Central European Journal of Physics

Editor-in-Chief: Seidel, Sally

Managing Editor: Lesna-Szreter, Paulina

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2391-5471
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Volume 10, Issue 6

Issues

Volume 13 (2015)

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

Shinji Ejiri / Sinya Aoki
  • Graduate School of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8571, Japan
  • Center for Computational Sciences, University of Tsukuba, Tsukuba, Ibaraki, 305-8577, Japan
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  • Other articles by this author:
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/ Tetsuo Hatsuda
  • Department of Physics, The University of Tokyo, Tokyo, 113-0033, Japan
  • IPMU, The University of Tokyo, Kashiwa, 277-8583, Japan
  • Theoretical Research Division, Nishina Center, RIKEN, Wako, 351-0198, Japan
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/ Kazuyuki Kanaya / Yoshiyuki Nakagawa / Hiroshi Ohno / Hana Saito / Takashi Umeda
Published Online: 2012-12-04 | DOI: https://doi.org/10.2478/s11534-012-0054-7

Abstract

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.

Keywords: CPOD 2011

  • [1] H. Saito, et al., Phys. Rev. D 84, 054502 (2011) http://dx.doi.org/10.1103/PhysRevD.84.054502Google Scholar

  • [2] Y. Nakagawa et al., PoS (LATTICE 2011) 208 (2011) Google Scholar

  • [3] H. Saito et al., PoS (LATTICE 2011) 214 (2011) Google Scholar

About the article

Published Online: 2012-12-04

Published in Print: 2012-12-01


Citation Information: Open Physics, Volume 10, Issue 6, Pages 1322–1325, ISSN (Online) 2391-5471, DOI: https://doi.org/10.2478/s11534-012-0054-7.

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© 2012 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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