Lattice QCD at finite T and μ
نویسنده
چکیده
Recent results of lattice QCD at finite temperature and density are reviewed. At vanishing density the transition temperature, the equation of state and hadron properties are discussed both for the pure gauge theory and for dynamical staggered, Wilson and overlap fermions. The second part deals with finite density. There are recent results for full QCD at finite temperature and moderate density, while at larger densities QCD-like models are studied.
منابع مشابه
Phase structures of strong coupling lattice QCD with overlap fermions at finite temperature and chemical potential
We perform the first study of lattice QCD with overlap fermions at finite temperature T and chemical potential μ. We start from the Taylor expanded overlap fermion action, and derive in the strong coupling limit the effective free energy by mean field approximation. On the (μ, T ) plane and in the chiral limit, there is a tricritical point, separating the second order chiral phase transition li...
متن کاملQCD thermodynamics at finite density
Recent progress in extending finite temperature lattice QCD simulations from the T axis into the finite density plane is reviewed. The covered topics are a calculation of the transition line by multidimensional reweighting, screening mass calculations in dimensionally reduced QCD and simulations at imaginary μ.
متن کاملTricritical point of lattice QCD with Wilson quarks at finite temperature and density
First principle study of QCD at finite temperature T and chemical potential μ is essential for understanding a wide range of phenomena from heavy-ion collisions to cosmology and neutron stars. However, in the presence of finite density, the critical behavior lattice gauge theory without species doubling, is unknown. At strong coupling, we examine the phase structure on the (μ, T ) plane, using ...
متن کاملThe critical point of lattice QCD on the μ-T plane
We propose a method to study lattice QCD at finite temperature and chemical potential. We compare it with direct results and with the Glasgow method by using nf=4 QCD at Im(μ)6=0. We locate the critical endpoint (E) of QCD on the Re(μ)T plane. In this study we use nf=2+1 dynamical staggered quarks with semi-realistic masses on Lt=4 lattices. QCD at finite T and μ is of fundamental importance, s...
متن کاملQcd Phases in Lattice Qcd
It is believed that QCD undergoes phase transitions as temperature T and the baryon density, controlled by a chemical potential μ, increase. For example, an expected phase structure is found in Fig.1 of ref. 1. To theoretically investigate what really happens at non-zero T and μ in QCD, lattice calculations seem ideal. Indeed, as reviewed in ref. 2, lattice QCD investigations are very successfu...
متن کاملFinite temperature and chemical potential in lattice QCD and its critical point
We propose a method to study lattice QCD at finite temperature (T) and chemical potential (μ). We compare the method with direct results and with the Glasgow method by using nf=4 QCD at Im(μ)6=0. We locate the critical endpoint (E) of QCD on the Re(μ)-T plane. We use nf=2+1 dynamical staggered quarks with semi-realistic masses on Lt=4 lattices. Our results are based on O(10 − 10) configurations...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2003