Fermion Condensates of massless QED₂ at Finite Density in non-trivial Topological Sectors

1996/02/13 by H. R. Christiansen, F. A. Schaposnik, F Schaposnik · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th

paper · pdf · doi:10.1103/physrevd.53.3260

published as Phys.Rev. D53 (1996) 3260-3265 · 16 pages, no figures, To be published in Phys.Rev.D

arxiv created 1996/02/13 · openalex publication_date 1996/03/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Vacuum expectation values of products of local bilinears ψψ are computed in massless QED₂ at finite density. It is shown that chiral condensates exhibit an oscillatory inhomogeneous behaviour depending on the chemical potential. The use of a path-integral approach clarifies the connection of this phenomenon with the topological structure of the theory.

Citations

• Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. I
• Path integral for gauge theories with fermions

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