Fixed scale approach to equation of state in lattice QCD

• 青木, 愼也

• 金谷, 和至

• Umeda, T.

• Ejiri, S.

• Aoki, S.

• Hatsuda, T.

• Kanaya, K.

• Maezawa, Y.

• Ohno, H.

Abstract

A new approach to study the equation of state in finite-temperature QCD is proposed on the lattice. Unlike the conventional method in which the temporal lattice size Nt is fixed, the temperature T is varied by changing Nt at the fixed lattice scale. The pressure of the hot QCD plasma is calculated by the integration of the trace anomaly with respect to T at the fixed lattice scale. This “T-integral method” is tested in quenched QCD on isotropic and anisotropic lattices and is shown to give reliable results, especially at intermediate and low temperatures.

Journal

• Physical review D

  Physical review D 79 (5), 051501-, 2009-03

  American Physical Society

Details

• CRID: 1050282677608389632
• NII Article ID: 120006747051
• NII Book ID: AA00773624
• ISSN: 15507998
• ISSN: 24700010
• HANDLE: 2241/102346
• HANDLE: 10191/27642
• Web Site: https://tsukuba.repo.nii.ac.jp/records/17642
• Web Site: https://niigata-u.repo.nii.ac.jp/records/2276
• Text Lang: en
• Article Type: journal article
• Data Source:
  • IRDB
  • CiNii Articles
  • KAKEN