Fermion Condensates of massless $QED_2$ at Finite Density in non-trivial Topological Sectors

Details Fermion Condensates of massless $QED_2$ at Finite Density in non-trivial Topological Sectors Fermion Condensates of massless $QED_2$ at Finite Density in non-trivial Topological Sectors

1996-02-13

arxiv.org/abs/hep-th/9602063v1

Phys.Rev. D53 (1996) 3260-3265

Physics

High Energy Physics

High Energy Physics - Theory

16 pages, no figures, To be published in Phys.Rev.D

Scientific paper

10.1103/PhysRevD.53.3260

Vacuum expectation values of products of local bilinears $\bar\psi\psi$ are
computed in massless $QED_2$ 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.

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