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arXiv · 1406.0205

Instanton Bags, High Density Holographic QCD and Chiral Symmetry Restoration

S. Bolognesi
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Abstract

We describe the simplest example of an instanton bag in Euclidean space. It consists of a monopole wall and a Kaluza-Klein monopole wall, lifted to one higher dimension, trapping the instanton charge in the middle. This object has finite instanton density in a three-dimensional volume. Baryon physics in holographic QCD models gets translated into a multi-instanton problem in the bulk, and a state with a high density baryonic charge consists of a non-diluted multi-instanton solution. The instanton bag is a good candidate for this high-density state. We compute its parameters via moduli stabilization. Chiral symmetry restoration is exhibited by this state, and it is a direct consequence of its non-diluted features.

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S. Bolognesi. 2014-10-16. Instanton Bags, High Density Holographic QCD and Chiral Symmetry Restoration. https://doi.org/10.1103/physrevd.90.105015

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