Hamiltonian lattice quantum chromodynamics at finite density with Wilson fermions
Hamiltonian lattice quantum chromodynamics at finite density with Wilson fermions
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有限密度下威尔逊费米子的哈密顿晶格量子色动力学
DOI:
10.1103/physrevd.69.114501
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发表时间:
2002-10
期刊:
影响因子:
--
通讯作者:
罗向前
中科院分区:
文献类型:
--
作者:
方奕忠;罗向前
Quantum chromodynamics (QCD) at sufficiently high density is expected to undergo a chiral phase transition. Understanding such a transition is of particular importance for neutron star or quark star physics. In Lagrangian SU(3) lattice gauge theory, the standard approach breaks down at large chemical potential $\mu$, due to the complex action problem. The Hamiltonian formulation of lattice QCD doesn't encounter such a problem. In a previous work, we developed a Hamiltonian approach at finite chemical potential $\mu$ and obtained reasonable results in the strong coupling regime. In this paper, we extend the previous work to Wilson fermions. We study the chiral behavior and calculate the vacuum energy, chiral condensate and quark number density, as well as the masses of light hadrons. There is a first order chiral phase transition at zero temperature.
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DOI:
--
发表时间:
2005
期刊:
--
影响因子:
--
作者:
J. Ellis;N. Mavromatos;D. Nanopoulos
通讯作者:
J. Ellis;N. Mavromatos;D. Nanopoulos
影响因子:
3.1
作者:
Xiang-Qian Luo
通讯作者:
Xiang-Qian Luo
影响因子:
8.6
作者:
R. Rapp;T. Schaefer;E. Shuryak;M. Velkovsky
通讯作者:
R. Rapp;T. Schaefer;E. Shuryak;M. Velkovsky
DOI:
10.1103/physrevd.46.814
发表时间:
1992-07
期刊:
Physical review. D, Particles and fields
影响因子:
--
作者:
Luo;Chen
通讯作者:
Luo;Chen
DOI:
10.1017/cbo9780511470783.002
发表时间:
1994-03
期刊:
--
影响因子:
--
作者:
I. Montvay;G. Münster
通讯作者:
I. Montvay;G. Münster