Dielectric Function of the QCD Vacuum

2008/03/31 by H. Reinhardt, Hugo Reinhardt
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevlett.101.061602

published as Phys.Rev.Lett.101:061602,2008 · 4 pages, 1 figure, revised version as published in Phys. Rev. Lett

arxiv created 2008/08/06 · openalex publication_date 2008/08/06 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

It is shown that the inverse of the ghost form factor in the Hamilton approach to Yang-Mills theory in Coulomb gauge can be interpreted as the color dielectric function of the QCD vacuum. Furthermore, the horizon condition to the ghost form factor implies that in the infrared the QCD vacuum is a perfect color diaelectric medium and therefore a dual superconductor. The dielectric function is explicitly calculated within a previously developed variational approach, using a specific ansatz for the vacuum wave functional.

Citations

• Quark and gluon confinement in Coulomb gauge
• Quantization of non-Abelian gauge theories
• Variational solution of the Yang-Mills Schrödinger equation in Coulomb gauge
• Propagators in Coulomb gauge from SU(2) lattice gauge theory
• Signals of Confinement in Green Functions of SU(2) Yang-Mills Theory
• On the phase transition towards permanent quark confinement
• Center dominance andZ2vortices in SU(2) lattice gauge theory
• The ’t Hooft loop in the Hamiltonian approach to Yang-Mills theory in Coulomb gauge