Confinement and complex singularities in QED3

Details Confinement and complex singularities in QED3 Confinement and complex singularities in QED3

1995-08-18

arxiv.org/abs/hep-ph/9508323v1

Phys.Rev.D52:6087-6097,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, REVTeX, 7 uuencoded figures appended

Scientific paper

10.1103/PhysRevD.52.6087

The standard approximations of the Dyson--Schwinger equation lead to complex singularities of the fermion propagator. In three-dimensional QED one can show that this phenomenon might be related to confinement: a confining potential leads to mass-like singularities at complex momenta, and thus to the absence of a mass singularity on the real timelike axis. The correct treatment of the vacuum polarization is essential for the confining nature of QED3.

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