Schwinger model: Julian Schwinger, Euclidean, Quantum Electrodynamics, Dirac Spinor, Spontaneous Symmetry Breaking, Fermionic Condensate, Instanton, Photon, Toy Model, Color Confinement

Schwinger model: Julian Schwinger, Euclidean, Quantum Electrodynamics, Dirac Spinor, Spontaneous Symmetry Breaking, Fermionic Condensate, Instanton, Photon, Toy Model, Color Confinement

Taschenbuch - 9786130352783
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Beschreibung

High Quality Content by WIKIPEDIA articles! In physics, the Schwinger model, named after Julian Schwinger, is the model describing 2D Euclidean quantum electrodynamics with a Dirac fermion. This model exhibits a spontaneous symmetry breaking of the U(1) symmetry due to a chiral condensate due to a pool of instantons. The photon in this model becomes a massive particle at low temperatures. This model can be solved exactly and is used as a toy model for other more complex theories. This model exhibits confinement of the fermions and as such, is a toy model for QCD. A handwaving argument why this is so is because in two dimensions, classically, the potential between two charged particles goes linearly, instead of 1/r in 4 dimensions (3 spatial 1 time).

Details

Verlag Betascript Publishers
Ersterscheinung Februar 2010
Maße 220 mm x 150 mm x 4 mm
Gewicht 118 Gramm
Format Taschenbuch
ISBN-13 9786130352783
Auflage Nicht bekannt
Seiten 68

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