Phase structure of lattice QCD at finite density with dynamical fermions

被引：10

作者：

Barbour, IM ^{[1
]}

Kogut, JB ^{[1
]}

Morrison, SE ^{[1
]}

机构：

[1] UNIV ILLINOIS, DEPT PHYS, URBANA, IL 61801 USA

来源：

NUCLEAR PHYSICS B | 1997年

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0920-5632(96)00686-X

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We compare the chemical potential associated with the onset of non-zero baryon number density on 6(4) and 8(4) lattices at beta = 5.1 and ma = 0.01. We provide evidence for Z(3) tunnelling. We determine a critical chemical potential of mu a similar or equal to 0.1 which is unexpectedly low. We also determine the dependence of the onset of the observed phase transition on the quark mass. The physically misleading result of the quenched theory is shown to persist despite the inclusion of the complex fermion determinant.

引用

页码：456 / 458

页数：3

共 6 条

[1] PROBLEMS WITH FINITE DENSITY SIMULATIONS OF LATTICE QCD [J].