2019/02/25 by Nikita Astrakhantsev, Astrakhantsev, N. Yu., V. V. Braguta +7 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #High Energy Physics - Theory (hep-th) #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions
paper · doi:10.48550/arxiv.1902.09325
openalex publication_date 2019/02/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In this paper we study the properties of QCD at nonzero chiral density ρ5, which is introduced through chiral chemical potential μ5. The study is performed within lattice simulation of QCD with dynamical rooted staggered fermions. We first check that ρ5 is generated at nonzero μ5 and in the chiral limit observe ρ5∼Λ2QCDμ5. We also test the possible connection between confinement and topological fluctuations. To this end, we measured the topological susceptibility χtop and string tension σ for various values of μ5. We observed that string tension grows with μ5. It seems that topological susceptibility also rises with μ5, but to state this more reliably the uncertainties should be reduced. We believe that our results indicate possible connection between topological fluctuations and the strength of confinement.