The Chiral Separation Effect from lattice QCD at the physical point

Abstract

In this paper we study the Chiral Separation Effect by means of first-principles lattice QCD simulations. For the first time in the literature, we determine the continuum limit of the associated conductivity using 2+1 flavors of dynamical staggered quarks at physical masses. The results reveal a suppression of the conductivity in the confined phase and a gradual enhancement toward the perturbative value for high temperatures. In addition to our dynamical setup, we also investigate the impact of the quenched approximation on the conductivity, using both staggered and Wilson quarks. Finally, we highlight the relevance of employing conserved vector and anomalous axial currents in the lattice simulations.

26 pages, 8 figures

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• Emergent Canonical Spin Tensor in the Chiral-Symmetric Hot QCD
• On the absence of the Chiral Magnetic Effect in equilibrium QCD
• Out-of-equilibrium Chiral Magnetic Effect from simulations on Euclidean lattices
• Strongly interacting matter in extreme magnetic fields
• Steady electric currents in magnetized QCD and their use for the equation of state
• Chiral Separation Effect from Holographic QCD
• Localized Chiral Magnetic Effect in equilibrium QCD
• Directed flow of D and B mesons in an electrically and chirally conductive QGP at LHC energies
• Non-perturbative suppression of Chiral Effects in hot QGP for $\Lambda /\bar{\Lambda }$-hyperons spin polarization in heavy-ion collisions