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Two dimensional fermions in four dimensional YM

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arxiv 0909.4066 v1 pith:FOVBSR3E submitted 2009-09-22 hep-lat hep-phhep-th

classification hep-lathep-phhep-th
keywords dimensionalchiralfermionsfoursymmetrytorusbrokendirac
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abstract

Dirac fermions in the fundamental representation of SU(N) live on a two dimensional torus flatly embedded in $R^4$. They interact with a four dimensional SU(N) Yang Mills vector potential preserving a global chiral symmetry at finite $N$. As the size of the torus in units of $\frac{1}{\Lambda_{SU(N)}}$ is varied from small to large, the chiral symmetry gets spontaneously broken in the infinite $N$ limit.

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  1. A Nonlocal Schwinger Model

    hep-th 2024-12 accept novelty 7.0 of 10

    For 2<d<4, 2D massless fermions coupled to a d-dimensional Maxwell field are exactly described by a scalar whose scaling dimension runs from 0 in the UV to (4-d)/2 in the IR.

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