Transition Temperature of Lattice Quantum Chromodynamics with Two Flavors with a Small Chemical Potential

• 作者: 吴良凯
• 来源期刊: 中国物理快报(英文版)
• 学科: 物理学
• 关键词: 量子色动力学 转变温度 化学势 口味 蒙特卡洛模拟 格子 动力学参数 加权方法
• 年，卷（期）: 2010,（2）
• 页码范围: 50-53
• 页数: 4页
• 分类号: O572.243 TG139.6
• 语种: 英文

摘要

We present the results for the transition temperature of quantum chromodynamics with two degenerate flavors (Nf=2) of Wilson quarks as a function of a small baryon chemical potential μB from Monte Carlo simulations at κ=0.175, κ is the hopping parameter. By using the imaginary chemical potential for which the fermion determinant is positive and the Ferrenberg-Swendsen reweighting method, we perform simulations on lattice 83*4 with 4 being the temporal extent. By analytic continuation of the data to the real chemical potential μ, we obtain the transition temperature for the small chemical potential, and compare our results with others.