In physics, the Schwinger model, named after Julian Schwinger, is the model describing 1+1D (1 spatial dimension + time) Lorentzian quantum electrodynamics which includes electrons, coupled to photons. The model defines the usual QED Lagrangian over a spacetime with one spatial dimension and one temporal dimension. Where is the photon field strength, is the gauge covariant derivative, is the fermion spinor, is the fermion mass and form the two-dimensional representation of the Clifford algebra.
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| - Modèle de Schwinger (fr)
- 슈윙거 모형 (ko)
- Schwinger model (en)
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| - 양자장론에서 슈윙거 모형(영어: Schwinger model)은 디랙 페르미온을 가진 2차원 양자 전기역학이다. 이 모형은 게이지 대칭의 자발 대칭 깨짐을 겪는다. (ko)
- En physique, le modèle de Schwinger, du nom du physicien Julian Schwinger, est le modèle décrivant l'électrodynamique quantique euclidienne 2D avec un fermion de Dirac. Ce modèle expose une brisure spontanée de symétrie de la symétrie U(1) à cause du dû à une réserve d'instantons. Le photon devient maintenant une particule massive. Ce modèle peut être résolu exactement et est utilisé comme modèle-jouet pour d'autres théories plus complexes. Le modèle a un lagrangien: (fr)
- In physics, the Schwinger model, named after Julian Schwinger, is the model describing 1+1D (1 spatial dimension + time) Lorentzian quantum electrodynamics which includes electrons, coupled to photons. The model defines the usual QED Lagrangian over a spacetime with one spatial dimension and one temporal dimension. Where is the photon field strength, is the gauge covariant derivative, is the fermion spinor, is the fermion mass and form the two-dimensional representation of the Clifford algebra. (en)
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| - En physique, le modèle de Schwinger, du nom du physicien Julian Schwinger, est le modèle décrivant l'électrodynamique quantique euclidienne 2D avec un fermion de Dirac. Ce modèle expose une brisure spontanée de symétrie de la symétrie U(1) à cause du dû à une réserve d'instantons. Le photon devient maintenant une particule massive. Ce modèle peut être résolu exactement et est utilisé comme modèle-jouet pour d'autres théories plus complexes. Le modèle a un lagrangien: Où est égal à la force du champ de photons, est la dérivée du covariant de jauge, est la spinorbitale du fermion, la masse du fermion et forment la représentation 2D de l'algèbre de Clifford. (fr)
- In physics, the Schwinger model, named after Julian Schwinger, is the model describing 1+1D (1 spatial dimension + time) Lorentzian quantum electrodynamics which includes electrons, coupled to photons. The model defines the usual QED Lagrangian over a spacetime with one spatial dimension and one temporal dimension. Where is the photon field strength, is the gauge covariant derivative, is the fermion spinor, is the fermion mass and form the two-dimensional representation of the Clifford algebra. 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 as , instead of in 4 dimensions, 3 spatial, 1 time. This model also 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. (en)
- 양자장론에서 슈윙거 모형(영어: Schwinger model)은 디랙 페르미온을 가진 2차원 양자 전기역학이다. 이 모형은 게이지 대칭의 자발 대칭 깨짐을 겪는다. (ko)
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