منابع مشابه
Lattice Simulations with Chemical Potential
After giving an overview of recently invented methods for simulating lattice QCD at small µ/T , we discuss some results for bulk thermodynamic quantities of QCD matter coming from those methods. We focus on the transition line and the critical endpoint in the QCD phase diagram.
متن کاملImaginary chemical potential and finite fermion density on the lattice
Standard lattice fermion algorithms run into the well-known sign problem at real chemical potential. In this paper we investigate the possibility of using imaginary chemical potential, and argue that it has advantages over other methods, particularly for probing the physics at finite temperature as well as density. As a feasibility study, we present numerical results for the partition function ...
متن کاملLattice QCD at finite density: imaginary chemical potential
I describe the results for the critical line and the thermodynamics of different phases of QCD which have been obtained by lattice simulations with an imaginary chemical potential. I review motivations and merits of the different strategies – Taylor expansion, Fourier analysis and Pade’ approximants – for analytic continuation from imaginary to real chemical potential. I consider phenomenologic...
متن کاملChemical-potential-based lattice Boltzmann method for nonideal fluids.
Chemical potential, as an important thermodynamic quantity, has been popularly used in thermodynamic modeling for complex systems, especially for those involving the phase transitions and chemical reactions. Here we present a chemical-potential-based multiphase lattice Boltzmann model, in which the nonideal force is directly evaluated by a chemical potential. The numerical computation is more e...
متن کاملLattice QCD at finite isospin chemical potential and temperature
We simulate lattice QCD at a finite chemical potential μI for isospin (I3) at zero and finite temperatures. At some μI = μc QCD has a second order transition with mean-field critical exponents to a state where (I3) is broken spontaneously by a charged pion condensate. Heating the system with μI > μc we find there is some temperature at which this condensate evaporates. This transition appears t...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1983
ISSN: 0370-2693
DOI: 10.1016/0370-2693(83)91290-x