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The Chiral Separation Effect from lattice QCD at the physical point
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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.
Forward citations
Cited by 2 Pith papers
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Lattice QCD Study of Anomalous Transport Phenomena in Strongly Interacting Matter
First physical-point lattice QCD calculation of the Chiral Separation Effect conductivity, a zero equilibrium Chiral Magnetic Effect with conserved currents, and a localized equilibrium CME in inhomogeneous fields.
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Out-of-equilibrium Chiral Magnetic Effect via Kubo formulas
First lattice estimate of the out-of-equilibrium CME conductivity in QCD, showing suppression below T_c and approach to perturbation theory at high T.
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