Phase Structure of Lattice QCD with Wilson fermion at Finite Temperature
نویسنده
چکیده
We review our attempt at understanding the phase structure of lattice QCD with the Wilson fermion formulation at finite temperature, based on a spontaneous breakdown of parity-flavor symmetry. Numerical results demonstrating explicitly the spontaneous breakdown of parity-flavor symmetry beyond the critical line at both zero and finite temperatures are reported. The phase structure and order of the chiral transition are reported for Nf = 2,3, and 4 flavors, and the approach towards the continuum limit is discussed.
منابع مشابه
Tricritical 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 کاملOn the phase structure of QCD with Wilson fermions
The phase structure of lattice QCD with Wilson fermions is discussed. Analytic and numerical evidences are given for the spontaneous breaking of parity and flavor symmetry, which naturally explains the existence of the massless pion at the critical hopping parameter Kc without recourse to the chiral symmetry absent in the Wilson fermion formulation. New numerical evidences are also presented fo...
متن کاملThe Phase Diagram of 2 Flavour Qcd with Improved Actions
It has been proposed, that the chiral continuum limit of 2-flavour QCD with Wilson fermions is brought about by a phase in which flavour and parity symmetry are broken spontaneously at finite lattice spacing. At finite temperature this phase should retract from the weak coupling limit to form 5 cusps. This scenario is studied with tree level Symanzik improved actions for both gauge and fermion ...
متن کاملFinite Temperature Phase Diagramm of QCD with improved Wilson fermions
The study of the finite temperature phase transition in QCD with Wilson fermions is much more complicated than in the staggered fermion formulation, because of the absence of an order parameter due to explicit chiral symmetry breaking. This means e.g. that the existence of a massless pion at finite lattice spacing is not at all obvious. In recent years a detailed picture of the finite temperatu...
متن کاملPhase structure of lattice QCD with Wilson and Neuberger quarks at finite temperature and density
We review our results for lattice QCD at finite temperature and density from analytical and numerical calculations with Wilson fermions and overlap fermions. c Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.
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 1997