| Co-Investigator(Renkei-kenkyūsha) |
AOKI Sinya 京都大学, 基礎物理学研究所, 教授 (30192454)
HATSUDA Tetsuo 理化学研究所, 仁科加速器研究センター, 主任研究員 (20192700)
UKAWA Akira 筑波大学, 数理物質系, 副学長/教授 (10143538)
NAKAMURA Atsushi 広島大学, 情報メディア教育研究センター, 教授 (30130876)
EJIRI Shinji 新潟大学, 自然科学系, 准教授 (10401176)
UMEDA Takashi 広島大学, 大学院・教育学研究科, 准教授 (40451679)
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| Budget Amount *help |
¥18,850,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥4,350,000)
Fiscal Year 2013: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2010: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2009: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Research Abstract |
By numerical simulations of lattice QCD with Wilson-type lattice quarks, we studied the phase structure of QCD at finite temperatures and densities as well as thermodynamic properties of the quark matter. Wilson-type lattice quarks are theoretically sound, but require large computational costs. Therefore, we have developed several computational techniques including the fixed-scale approach armed by the T-integration method and the histogram method, and tested their efficiency. Applying these techniques, we have computed the equation of state in two and 2+1 flavor QCD, for the first time with Wilson-type quarks. We have also investigated the inter-quark potential of static quarks and the phase structure of QCD at finite temperatures and densities in the heavy-quark region.
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