Phase Diagram of Quantum Chromodynamics in the Temperature–Baryon Density–Magnetic Field Parameter Space
https://doi.org/10.1134/S2079562920040077
Abstract
The phase diagram of quantum chromodynamics under different external parameters, such as temperature, baryon density, and magnetic field strength is investigated by means of lattice simulations. Calculations are perfomed with three light quarks and imaginary chemical potential. For real values of chemical potential , the results are obtained by means of analytical continuation. Using renormalised chiral condensate and Polyakov loop, we determine the position (critical temperature) and width of the confinement−deconfinement and chiral symmetry breaking−restoration phase transitions as functions of magnetic field and baryon density.
Keywords
quantum chromodynamics,
phase diagram,
lattice Monte Carlo modelling,
magnetic field,
baryon density
Supporting agencies: Work by A.Yu. Kotov, which consists of generating configurations and measurements of chiral observables, was carried out with a grant from the Russian Science Foundation (project No. 18-72-00055). Work by A. A. Nikolaev, which consists of studying the properties of the confinement-transition deconfinement, supported by the Russian Foundation for Basic Research (grant 18-02- 40126 mega), as well as STFC grant ST/P00055X/1. The work was performed using equipment center for collective use “Complex fashion-linging and processing research data mega-class installations” National Research Center “Kurchatov Institute”, http://ckp.nrcki.ru/
About the Authors
A. Yu. Kotov
Alikhanov Institute for Theoretical and Experimental Physics, National Research Center “Kurchatov Institute”
Russian Federation
Russian Federation
117218; B. Cheremushkinskaya st. 25; Moscow
A. A. Nikolaev
Alikhanov Institute for Theoretical and Experimental Physics, National Research Center “Kurchatov Institute”; Department of Physics, College of Science, Swansea University
Russian Federation
Russian Federation
Department of Physics
117218; B. Cheremushkinskaya st. 25; Moscow; United Kingdom; Swansea SA2 8PP
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Review
For citations:
Kotov A.Yu., Nikolaev A.A. Phase Diagram of Quantum Chromodynamics in the Temperature–Baryon Density–Magnetic Field Parameter Space. Nuclear Physics and Engineering. 2020;11(4):212-215. (In Russ.) https://doi.org/10.1134/S2079562920040077
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