Second-order chiral phase transition in three-flavor quantum chromodynamics?
G. Fejős
Abstract
We calculate the renormalization group flows of all perturbatively renormalizable interactions in the three-dimensional Ginzburg-Landau potential for the chiral phase transition of three-flavor quantum chromodynamics. On the contrary to the common belief we find a fixed point in the system that is able to describe a second-order phase transition in the infrared. This shows that long-standing assumptions on the transition order might be false. If the transition is indeed of second order, our results may hint that the axial $U(1)$ symmetry restores at the transition temperature.
Topics & Concepts
Quantum phase transitionPhysicsQuantum critical pointPhase transitionRenormalization groupQuantum mechanicsQuantumTransition pointSymmetry (geometry)Condensed matter physicsRenormalizationPhase (matter)Transition (genetics)Quantum phasesFixed pointPoint (geometry)Order (exchange)FerroicsSymmetry groupCritical phenomenaQuantum fluctuationQuantum electrodynamicsStatistical physicsTheoretical physicsQuantum systemFunctional renormalization groupFirst orderDensity matrix renormalization groupSymmetry breakingPhase diagramHigh-Energy Particle Collisions ResearchQuantum Mechanics and Non-Hermitian PhysicsTopological Materials and Phenomena