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QCD domain walls, Chern-Simons theories and holography

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arxiv 1806.08292 v3 pith:GBIFVMBU submitted 2018-06-21 hep-th

Riccardo Argurio , Matteo Bertolini , Francesco Bigazzi , Aldo L. Cotrone , Pierluigi Niro This is my paper · ORCID
classification hep-th
keywords chern-simonsclaimsdomainmodelphasestheoriestheorywalls
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abstract

Massive QCD at $\theta=\pi$ breaks CP spontaneously and admits domain walls whose dynamics and phases depend on the number of flavors and their masses. We discuss these issues within the Witten-Sakai-Sugimoto model of holographic QCD. Besides showing that this model reproduces all QCD expectations, we address two interesting claims in the literature. The first is about the possibility that the QCD domain-wall theory is fully captured by three-dimensional physics, only. The second regards the existence of quantum phases in certain Chern-Simons theories coupled to fundamental matter. Both claims are supported by the string theory construction.

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  1. Cosmic Topological Defects from Holography

    hep-th 2024-11 conditional novelty 6.0 of 10

    Using the Witten-Sakai-Sugimoto holographic model, the authors describe axionic cosmic string loops and domain walls as D6-brane embeddings, find a first-order transition between them, and show that large-baryon-charg...

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