Compact extra-dimensions as solution to the strong CP problem

@article{Bezrukov2008CompactEA,
  title={Compact extra-dimensions as solution to the strong CP problem},
  author={Fedor Bezrukov and Yannis Burnier},
  journal={Physical Review D},
  year={2008}
}
We propose a way of a dynamical solution of the strong CP in models with compact extradimensions. To this aim we consider a one dimensional toy model for QCD, which contains a vacuum angle and a strong CP like problem. We further consider a higher dimensional theory, which has a trivial vacuum structure and which reproduces the perturbative properties of the toy model in the low-energy limit. In the weak coupling regime, where our computations are valid, we show that the vacuum structure of the… 
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