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arXiv · hep-th/9602063

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

H. R. Christiansen·F. A. Schaposnik
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Abstract

Vacuum expectation values of products of local bilinears $\barψψ$ 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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H. R. Christiansen, F. A. Schaposnik. 1996-02-13. Fermion Condensates of massless $QED_2$ at Finite Density in non-trivial Topological Sectors. https://doi.org/10.1103/physrevd.53.3260

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