Chiral Symmetry Breaking and Confinement in Minkowski Space QED2+1

0346946 - ÚJF 2011 RIV AT eng J - Journal Article
Šauli, Vladimír - Batiz, Z.
Chiral Symmetry Breaking and Confinement in Minkowski Space QED2+1.
Few-Body Systems. Roč. 48, č. 1 (2010), s. 41-52. ISSN 0177-7963. E-ISSN 1432-5411
Institutional research plan: CEZ:AV0Z10480505
Keywords : QUANTUM ELECTRODYNAMICS * QED(3) * POLARIZATION
Subject RIV: BE - Theoretical Physics
Impact factor: 0.622, year: 2010

Without any analytical assumption we solve the ladder QED2+1 in Minkowski space. Obtained complex fermion propagator exhibits confinement in the sense that it has no pole. Further, we transform Greens functions to the Temporal Euclidean space, wherein we show that in the special case of ladder QED2+1 the solution is fully equivalent to the Minkowski one. Obvious invalidity of Wick rotation is briefly discussed. The infrared value of the dynamical mass is compared with other known approaches, e.g. with the standard Euclidean calculation.
Permanent Link: http://hdl.handle.net/11104/0187842